1
Acid-induced chemoselective arylthiolations of electron-rich arenes in ionic liquids from sodium arylsulfinates: The reducibility of
halide anions in [Hmim]Br
Zhu-bing Xu, Guo-ping Lu*, Chun Cai
Chemical Engineering College, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, 210094, China
* Corresponding Author E-mail: [email protected]
1. Characterization data ........................................................................2
2. NMR Spectra of All Products ............................................................................12
1. Characterization data
Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.This journal is © The Royal Society of Chemistry 2017
2
OHS
Chemical Formula: C16H12OSMass: 252
1-(Phenylthio)naphthalen-2-ol 3a.1 Yellow solid, mp 63-65 °C (lit. 65-67 °C), yield 86%, 108.4 mg. 1H NMR (500 MHz, CDCl3) δ 8.18 (d, J = 8.5 Hz, 1H), 7.85 (d, J = 9.0 Hz, 1H), 7.76 (d, J = 8.0 Hz, 1H), 7.45 (t, J = 7.5 Hz, 1H), 7.29-7.33 (m, 2H), 7.10-7.15 (m, 3H), 7.05 (t, J = 7.0 Hz, 1H), 6.98 (d, J = 7.5 Hz, 2H). 13C NMR (125 MHz, CDCl3) δ 157.2, 135.6, 135.6, 133.0, 129.7, 129.4, 128.8, 128.1, 126.6, 126.1, 124.9, 124.1, 117.1, 108.3. GC-MS (EI) m/z: 252.
SOH
Chemical Formula: C17H14OSMass: 266
1-(p-Tolylthio)naphthalen-2-ol 3b.1 Yellow solid, mp 78-80 °C (lit. 77-79 °C), yield 90%, 119.7 mg. 1H NMR (500 MHz, CDCl3) δ 8.20 (d, J = 8.5 Hz, 1H), 7.83 (d, J = 8.9 Hz, 1H), 7.75 (d, J = 8.0 Hz, 1H), 7.43-7.46 (m, 1H), 7.29-7.33. (m, 2H), 7.20 (s, 1H), 6.90-6.94 (m, 4H), 2.19 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 157.0, 136.0, 135.6, 132.8, 131.9, 130.1, 129.6, 128.7, 128.0, 126.8, 124.9, 124.0, 117.0, 108.8, 21.0. GC-MS (EI) m/z: 266.
OHS
Chemical Formula: C17H14OSMass: 266
1-(o-Tolylthio)naphthalen-2-ol 3c.1 Yellow solid, mp 63-65 °C (lit. 65-67 °C), yield 88%, 117.0 mg. 1H NMR (500 MHz, CDCl3) δ 8.07 (d, J = 8.4 Hz, 1H), 7.86 (d, J = 8.9 Hz, 1H), 7.77 (d, J = 8.0 Hz, 1H), 7.42 (t, J = 7.5 Hz, 1H), 7.29-7.33 (m, 2H), 7.13 (d, J = 7.4 Hz, 1H), 7.03 (s, 1H), 6.95 (t, J = 7.4 Hz, 1H), 6.80 (d, J = 7.5 Hz, 1H), 6.32 (d, J = 7.8 Hz, 1H), 2.53 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 156.2, 134.6, 134.2, 133.4, 131.9, 129.4, 128.6, 127.7, 127.0, 125.8, 124.5, 123.8, 123.0, 116.0, 106.4, 19.2. GC-MS (EI) m/z: 266.
OHS
O
Chemical Formula: C17H14O2SMass: 282
1-((4-Methoxyphenyl)thio)naphthalen-2-ol 3d.1 Yellow solid, mp 69-71 °C (lit. 68-70 °C), yield 89%, 125.5 mg. 1H NMR (500 MHz, CDCl3) δ 8.22 (d, J = 8.5 Hz, 1H), 7.81 (d, J = 8.9 Hz, 1H), 7.73 (d, J = 8.1 Hz, 1H), 7.45 (t, J = 7.6 Hz, 1H), 7.27-7.32 (m, 3H), 6.99 (d, J = 9.0 Hz, 2H), 6.66 (d, J = 8.0 Hz, 2H), 3.63 (s, 3H). 13C NMR
3
(125 MHz, CDCl3) δ 158.6, 156.9, 135.6, 132.7, 129.7, 129.0, 128.8, 128.0, 126.1, 125.0, 124.0, 117.1, 115.1, 110.0, 55.4. GC-MS (EI) m/z: 282.
OHS
F
Chemical Formula: C16H11FOSMass: 270
1-((4-Fluorophenyl)thio)naphthalen-2-ol 3e.2 Light yellow solid, mp 113-115 °C, yield 94%, 126.9 mg. 1H NMR (500 MHz, CDCl3) δ 8.13 (d, J = 8.5 Hz, 1H), 7.83 (d, J = 8.9 Hz, 1H), 7.74 (d, J = 8.5, 1H), 7.44 (t, J = 7.5 Hz, 1H), 7.26-7.32 (m, 2H), 7.12 (s, 1H), 6.93-6.96 (m, 2H), 6.79-6.83 (m, 2H). 13C NMR (125 MHz, CDCl3) δ 161.6 (d, J = 245.0 Hz, 1C), 157.1, 135.4, 133.1, 130.5, 129.7, 128.7 (d, J = 30.0 Hz, 1C), 128.5, 128.2, 124.7, 124.1, 117.0, 116.5 (d, J = 22.5 Hz, 1C), 108.7. GC-MS (EI) m/z: 270.
OHS
Cl
Chemical Formula: C16H11ClOSMass: 286
1-((4-Chlorophenyl)thio)naphthalen-2-ol 3f.1 Yellow solid, mp 83-86 °C (lit. 85-87 °C), yield 90%, 128.7 mg. 1H NMR (500 MHz, CDCl3) δ 8.19 (d, J = 8.4 Hz, 1H), 7.93 (d, J = 8.9 Hz, 1H), 7.84 (d, J = 8.1 Hz, 1H), 7.52 (ddd, J = 8.4, 6.9, 1.2 Hz, 1H), 7.43 – 7.34 (m, 2H), 7.18 – 7.11 (m, 3H), 6.99 – 6.93 (m, 2H). 13C NMR (125 MHz, CDCl3) 157.2, 135.3, 134.1, 133.3, 132.0, 130.0, 129.7, 129.4, 128.8, 128.3, 127.8, 124.6, 124.2, 117.1, 107.8. GC-MS (EI) m/z: 286.
OHS
Br
Chemical Formula: C16H11BrOSMass: 330
1-((4-bromophenyl)thio)naphthalen-2-ol 3g.1 Yellow solid, mp 106-108 °C (lit. 103-105 °C), yield 80%, 132.0 mg. 1H NMR (500 MHz, CDCl3) δ 8.07 (d, J = 8.5 Hz, 1H), 7.84 (d, J = 8.9 Hz, 1H), 7.74 (d, J = 8.0 Hz, 1H), 7.43 (t, J = 7.5 Hz, 1H), 7.25-7.32 (m, 2H), 7.18 -7.21 (m, 2H), 7.01 (s, 1H), 6.80 (d, J = 8.5 Hz, 2H). 13C NMR (125 MHz, CDCl3) δ 157.2, 135.3, 134.8, 133.3, 132.3, 129.7, 128.8, 128.3, 128.0, 124.6, 124.1, 119.8, 117.1, 107.6. GC-MS (EI) m/z: 330.
OH
S Chemical Formula: C19H18OSMass: 294
Elemental Analysis: C, 77.51; H, 6.16; O, 5.43; S, 10.89
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1-(Mesitylthio)naphthalen-2-ol 3h. Yellow solid, mp 105-107 °C, yield 86%, 126.4 mg. 1H NMR (500 MHz, CDCl3) δ 8.04 (d, J = 8.5 Hz, 1H), 7.76 (d, J = 8.8 Hz, 2H), 7.44 (t, J = 7.7 Hz, 1H), 7.33 (t, J = 7.5 Hz, 1H), 7.22 (d, J = 8.9 Hz, 1H), 6.89 (s, 2H), 6.81 (s, 1H), 2.36 (s, 6H), 2.25 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 155.3, 140.7, 137.9, 134.7, 130.9, 129.7, 128.7, 127.3, 124.5, 123.6, 117.1, 111.5, 21.8, 21.0. GC-MS (EI) m/z: 294. Anal. Calcd for C19H18OS: C, 77.51%; H, 6.16%. Found: C, 77.17%; H, 6.52%.
OS Chemical Formula: C17H14OS
Mass: 266
(2-Methoxynaphthalen-1-yl)(phenyl)sulfane 3i.2 White solid, mp 77-80 °C (lit. 79-80 °C), yield 97%, 129.0 mg. 1H NMR (500 MHz, CDCl3) δ 8.48 (d, J = 8.6 Hz, 1H), 7.98 (d, J = 9.0 Hz, 1H), 7.84 (d, J = 8.1 Hz, 1H), 7.51 (ddd, J = 8.4, 6.8, 1.3 Hz, 1H), 7.43 – 7.36 (m, 2H), 7.14 (t, J = 7.7 Hz, 2H), 7.08 – 7.00 (m, 3H), 3.97 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 159.4, 138.3, 136.4, 132.2, 129.7, 128.8, 128.4, 127.9, 126.4, 125.6, 124.9, 124.3, 113.6, 113.1, 57.1. GC-MS (EI) m/z: 266.
OS Chemical Formula: C18H16OS
Mass: 280
(2-Methoxynaphthalen-1-yl)(p-tolyl)sulfane 3j.1 Yellow solid, mp 58-61 °C (lit. 57-59 °C), yield 91%, 127.4 mg. 1H NMR (500 MHz, CDCl3) δ 8.40 (d, J = 8.5 Hz, 1H), 7.88 (d, J = 9.0 Hz, 1H), 7.74 (d, J = 8.0 Hz, 1H), 7.42 (t, J = 7.5 Hz, 1H), 7.27-7.32 (m, 2H), 6.86 (br, s, 4H), 3.89 (s, 3H), 2.15 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 159.3, 136.4, 134.7, 134.7, 132.0, 129.6, 128.4, 127.8, 126.8, 125.7, 124.2, 113.8, 113.6, 57.1, 21.0. GC-MS (EI) m/z: 280.
OS Chemical Formula: C18H16OS
Mass: 280Elemental Analysis: C, 77.11; H, 5.75; O, 5.71; S, 11.44
(2-Methoxynaphthalen-1-yl)(o-tolyl)sulfane 3k. Light yellow solid, mp 126-127 °C, yield 95%, 133.0 mg. 1H NMR (500 MHz, CDCl3) δ 8.38 (d, J = 8.6 Hz, 1H), 7.99 (d, J = 9.0 Hz, 1H), 7.84 (d, J = 8.0 Hz, 1H), 7.48 (t, J = 7.6 Hz, 1H), 7.39 (dd, J = 8.2, 4.0 Hz, 2H), 7.15 (d, J = 7.4 Hz, 1H), 6.96 (t, J = 7.4 Hz, 1H), 6.82 (t, J = 7.6 Hz, 1H), 6.41 (d, J = 7.9 Hz, 1H), 3.96 (s, 3H), 2.57 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 159.62, 137.3, 136.4, 135.0, 132.1, 130.0, 129.8, 128.4, 127.8, 126.3, 125.6, 125.4, 124.5, 124.3, 113.6, 112.9, 57.1, 20.3. GC-MS (EI) m/z: 280. Anal. Calcd for C18H16OS: C, 77.11%; H, 5.75%. Found: C, 76.98%; H, 6.07%.
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OS
O
Chemical Formula: C18H16O2SMass: 296
2-Methoxy-1-(4-methoxyphenylsulfanyl)naphthalene 3l.3 White solid, mp 81-82 °C (lit. 80–82 °C), yield 97%, 143.6 mg. 1H NMR (500 MHz, CDCl3) δ 8.6 (d, J = 8.6 Hz, 1H), 7.9 (d, J = 9.0 Hz, 1H), 7.8 (d, J = 8.1 Hz, 1H), 7.6 – 7.5 (m, 1H), 7.4 (t, J = 7.5 Hz, 1H), 7.3 (d, J = 9.0 Hz, 1H), 7.1 – 7.1 (m, 2H), 6.8 – 6.7 (m, 2H), 4.0 (s, 3H), 3.7 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 159.1, 157.9, 136.3, 131.8, 129.7, 129.3, 128.9, 128.4, 127.7, 125.7, 124.2, 115.0, 114.6, 113.7, 57.1, 55.4. GC-MS (EI) m/z: 296.
OS
F
Chemical Formula: C17H13FOSMass: 284
Elemental Analysis: C, 71.81; H, 4.61; F, 6.68; O, 5.63; S, 11.28
(4-Fluorophenyl)(2-methoxynaphthalen-1-yl)sulfane 3m. Light yellow oil, yield 94%, 133.5 mg. 1H NMR (500 MHz, CDCl3) δ 8.48 (dd, J = 8.6, 1.0 Hz, 1H), 7.97 (d, J = 9.0 Hz, 1H), 7.86 – 7.80 (m, 1H), 7.52 (ddd, J = 8.4, 6.8, 1.3 Hz, 1H), 7.43 – 7.33 (m, 2H), 7.07 – 7.01 (m, 2H), 6.89 – 6.81 (m, 2H), 3.97 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 162.0, 160.1, 159.3, 136.2, 133.2, 132.2, 129.7, 128.7, 128.7, 128.5, 127.9, 125.4, 124.3, 116.0, 115.8, 113.9, 113.6, 57.0. GC-MS (EI) m/z: 284. Anal. Calcd for C17H13FOS: C, 71.81%; H, 4.61%. Found: C, 71.56%; H, 4.83%.
OS
Br
Chemical Formula: C17H13BrOSMass: 344
(4-Bromophenyl)(2-methoxynaphthalen-1-yl)sulfane 3n.4 White solid, mp 113-114 °C, yield 87%, 149.6 mg. 1H NMR (500 MHz, CDCl3) δ 8.32 (d, J = 8.5 Hz, 1H), 7.91 (d, J = 9.0 Hz, 1H), 7.76 (d, J = 8.0 Hz, 1H), 7.43 (t, J = 7.5 Hz, 1H), 7.34 – 7.27 (m, 2H), 7.15 (d, J = 8.6 Hz, 2H), 6.79 (d, J = 8.6 Hz, 2H), 3.89 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 159.4, 137.6, 136.2, 132.5, 132.3, 131.8, 128.5, 128.3, 128.0, 125.3, 124.4, 118.4, 113.5, 112.5, 57.0. GC-MS (EI) m/z: 344.
O O
S
O
Chemical Formula: C16H18O3SMass: 290
Elemental Analysis: C, 66.18; H, 6.25; O, 16.53; S, 11.04
(2,4-Dimethoxy-6-methylphenyl)(4-methoxyphenyl)sulfane 3o. Light yellow solid, mp 102-103 °C, yield 86%, 124.7 mg. 1H NMR (500 MHz, CDCl3) δ 6.99 (d, J = 8.8
6
Hz, 2H), 6.74 (d, J = 8.7 Hz, 2H), 6.49 (d, J = 2.5 Hz, 1H), 6.40 (d, J = 2.6 Hz, 1H), 3.84 – 3.78 (m, 6H), 3.73 (d, J = 1.3 Hz, 3H), 2.43 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 161.9, 161.4, 157.6, 146.0, 129.4, 128.2, 114.6, 112.0, 107.4, 96.9, 56.3, 55.4, 21.9. GC-MS (EI) m/z: 290. Anal. Calcd for C16H18O3S: C, 66.18%; H, 6.25%. Found: C, 66.47%; H, 5.95%.
O O
S
O
Chemical Formula: C15H16O3SMass: 276
Elemental Analysis: C, 65.19; H, 5.84; O, 17.37; S, 11.60
2,4-(Dimethoxyphenyl)(4-methoxyphenyl)sulfane 3p.5 Light yellow oil, yield 86%, 118.7 mg. 1H NMR (500 MHz, CDCl3) δ 7.29 – 7.23 (m, 2H), 7.08 (d, J = 8.5 Hz, 1H), 6.87 – 6.80 (m, 2H), 6.49 (d, J = 2.5 Hz, 1H), 6.43 (dd, J = 8.5, 2.5 Hz, 1H), 3.83 (s, 3H), 3.79 (d, J = 4.5 Hz, 6H). 13C NMR (125 MHz, CDCl3) δ 160.8, 159.0, 158.9, 133.5, 132.8, 126.4, 115.9, 114.8, 105.4, 99.2, 56.0, 55.6, 55.5. GC-MS (EI) m/z: 276. Anal. Calcd for C15H16O3S: C, 65.19%; H, 5.84%. Found: C, 65.42%; H, 6.18%.
O O
S
O
Chemical Formula: C17H20O3SMass: 304
Elemental Analysis: C, 67.08; H, 6.62; O, 15.77; S, 10.53
(2,4-Diethoxyphenyl)(4-methoxyphenyl)sulfane 3q. Light yellow oil, yield 91%, 138.3 mg. 1H NMR (500 MHz, CDCl3) δ 7.3 (d, J = 8.8 Hz, 2H), 7.1 (d, J = 8.5 Hz, 1H), 6.8 (d, J = 8.8 Hz, 2H), 6.5 (d, J = 2.5 Hz, 1H), 6.4 (dd, J = 8.5, 2.5 Hz, 1H), 4.0 (dq, J = 14.1, 7.0 Hz, 4H), 3.8 (s, 3H), 1.4 (dt, J = 21.2, 6.9 Hz, 6H). 13C NMR (125 MHz, CDCl3) δ 160.0, 159.0, 158.2, 133.2, 133.0, 126.6, 116.3, 114.7, 105.8, 100.7, 64.4, 63.8, 55.4, 14.9, 14.7. GC-MS (EI) m/z: 304. Anal. Calcd for C17H20O3S: C, 67.08%; H, 6.62%. Found: C, 66.91%; H, 6.87%.
OO O
SChemical Formula: C16H18O3S
Mass: 290
p-Tolyl(2,3,4-trimethoxyphenyl)sulfane 3r.6 Light yellow oil, yield 87%, 126.2 mg. 1H NMR (500 MHz, CDCl3) δ 7.2 (d, J = 7.9 Hz, 2H), 7.1 (d, J = 7.9 Hz, 2H), 6.9 (d, J = 8.7 Hz, 1H), 6.6 (d, J = 8.7 Hz, 1H), 3.9 (s, 3H), 3.8 (s, 6H), 2.3 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 153.8, 153.0, 143.0, 136.7, 132.6, 130.7, 130.0, 127.5, 108.0, 61.2, 61.1, 56.2, 21.2. GC-MS (EI) m/z: 290.
O
OO
SChemical Formula: C17H20O3S
Mass: 304Elemental Analysis: C, 67.08; H, 6.62; O, 15.77; S, 10.53
p-Tolyl(2,3,4-trimethoxy-6-methylphenyl)sulfane 3s. Light yellow oil, yield 91%, 138.3 mg. 1H NMR (500 MHz, CDCl3) δ 7.00 (d, J = 8.0 Hz, 2H), 6.91 (d, J = 8.2 Hz, 2H), 6.66 (s, 1H), 3.88 (d, J = 13.0 Hz, 6H), 3.77 (s, 3H), 2.37 (d, J = 2.0 Hz, 3H), 2.26 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 155.9, 154.4, 141.0, 139.6, 135.3, 134.6, 129.7, 126.3, 117.3, 109.5, 61.6, 61.1, 56.1, 21.5, 21.0. GC-MS (EI) m/z: 304. Anal.
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Calcd for C17H20O3S: C, 67.08%; H, 6.62%. Found: C, 66.74%; H, 6.93%.
O O
SO
Chemical Formula: C16H18O3SMass: 290
p-Tolyl(2,4,6-trimethoxyphenyl)sulfane 3t.7 White solid, mp 112-114 °C (lit. 111-112 °C), yield 92%, 133.4 mg. 1H NMR (500 MHz, CDCl3) δ 7.01 – 6.90 (m, 4H), 6.21 (s, 2H), 3.87 (s, 3H), 3.81 (s, 6H), 2.25 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 162.8, 162.6, 135.2, 134.2, 129.4, 126.2, 99.6, 91.4, 56.4, 55.5, 21.0. GC-MS (EI) m/z: 290.OH
SChemical Formula: C17H20OS
Mass: 272
4-(tert-Butyl)-2-(p-tolylthio)phenol 3u.8 Yellow oil, yield 73%, 99.3 mg. 1H NMR (500 MHz, CDCl3) δ 7.5 (d, J = 2.5 Hz, 1H), 7.4 (dd, J = 8.6, 2.5 Hz, 1H), 7.1 (d, J = 8.0 Hz, 2H), 7.0 (dd, J = 8.5, 2.9 Hz, 3H), 6.4 (s, 1H), 2.3 (s, 3H), 1.3 (s, 9H). 13C NMR (125 MHz, CDCl3) δ 155.0, 144.3, 136.1, 133.5, 132.6, 130.1, 129.4, 127.1, 116.1, 115.0, 34.3, 31.6, 21.0. GC-MS (EI) m/z: 272.
NH2
O O
S Chemical Formula: C15H17NO2SMass: 275
Elemental Analysis: C, 65.43; H, 6.22; N, 5.09; O, 11.62; S, 11.64
3,5-dimethoxy-2-(p-tolylthio)aniline 4a. Brown oil, yield 52%, 71.5 mg. 1H NMR (500 MHz, CDCl3) δ 7.00 (d, J = 8.3 Hz, 2H), 6.96 (d, J = 8.3 Hz, 2H), 6.05 – 5.91 (m, 2H), 4.49 (s, 2H), 3.79 (d, J = 10.4 Hz, 6H), 2.26 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 164.2, 154.2, 137.1, 134.9, 133.6, 129.7, 125.9, 94.5, 85.6, 56.2, 29.9, 29.5, 21.0. GC-MS (EI) m/z: 275. Anal. Calcd for C15H17NO2S: C, 65.43%; H, 6.22%; N, 5.09%. Found: C, 65.68%; H, 6.01%; N, 4.88%.
NH2
O O
SSChemical Formula: C22H23NO2S2
Mass: 397Elemental Analysis: C, 66.47; H, 5.83; N,
3.52; O, 8.05; S, 16.13
3,5-Dimethoxy-2,6-bis(p-tolylthio)aniline 4a’. White solid, mp 131-133 °C, yield 37%, 73.4 mg. 1H NMR (500 MHz, CDCl3) δ 7.01 (d, J = 8.1 Hz, 4H), 6.97 (d, J = 8.3 Hz, 4H), 6.03 (s, 1H), 5.39 (s, 2H), 3.88 (s, 6H), 2.27 (s, 6H). 13C NMR (125 MHz, CDCl3) δ 162.8, 151.6, 134.7, 129.7, 125.8, 92.2, 89.6, 56.2, 55.4, 21.0. GC-MS (EI) m/z: 397. Anal. Calcd for C22H23NO2S2: C, 66.47%; H, 5.83%; N, 3.52%. Found: C, 66.75%; H, 5.62%, N, 3.24%.
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SNH2
Chemical Formula: C17H15NSMass: 265
1-((4-Methoxyphenyl)thio)naphthalen-2-amine 4b.1 Red solid, mp 110-112 °C (lit. 113-115 °C), yield 92%, 121.9 mg. 1H NMR (500 MHz, CDCl3) δ 8.34 (d, J = 8.5 Hz, 1H), 7.76 (dd, J = 11.6, 8.4 Hz, 2H), 7.29 (ddd, J = 8.0, 6.9, 1.1 Hz, 1H), 7.06 (d, J = 8.8 Hz, 1H), 6.99 (m, 4H), 4.36 (s, 2H), 2.27 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 148.5, 136.9, 135.0, 133.4, 131.8, 129.9, 128.6, 128.5, 127.9, 126.3, 124.5, 122.7, 117.8, 105.5, 21.0. GC-MS (EI) m/z: 265.
NH2
S
Chemical Formula: C19H25NSMass: 299
Elemental Analysis: C, 76.20; H, 8.41; N, 4.68; S, 10.71
2,6-Diisopropyl-4-(p-tolylthio)aniline 4c. Brown oil, yield 52%, 77.7 mg. 1H NMR (500 MHz, CDCl3) δ 7.19 (s, 2H), 7.04 (s, 4H), 3.87 (s, 2H), 2.90 (p, J = 6.8 Hz, 2H), 2.29 (s, 3H), 1.25 (d, J = 6.8 Hz, 12H). 13C NMR (125 MHz, CDCl3) δ 141.0, 136.4, 135.0, 133.5, 129.7, 129.5, 127.4, 120.7, 28.2, 22.4, 21.0. GC-MS (EI) m/z: 299. Anal. Calcd for C19H25NS: C, 76.20%; H, 8.41%, N, 4.68%. Found: C, 76.48%; H, 8.33%, N, 4.76%.
N
S
Chemical Formula: C15H17NSMass: 243
N, N-dimethyl-4-(p-tolylthio)aniline 4d.9 Yellow solid, mp 44-47 °C (lit. 43-47 °C), yield 74%, 89.9 mg. 1H NMR (500 MHz, CDCl3) δ 7.35 (d, J = 8.4 Hz, 1H), 7.13 (d, J = 8.3 Hz, 1H), 6.99 (d, J = 8.2 Hz, 1H), 6.69 (d, J = 7.8 Hz, 1H), 2.98 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 150.8, 139.1, 136.2, 130.9, 128.9, 128.2, 116.9, 113.2, 101.5, 40.47. GC-MS (EI) m/z: 243.
O
HO
S
Chemical Formula: C25H28O2SMass: 392
Elemental Analysis: C, 76.49; H, 7.19; O, 8.15; S, 8.17
3-Hydroxy-13-methyl-2-(p-tolylthio)-6,7,8,9,11,12,13,14,15,16-decahydro-17H-
9
cyclopenta[a]phenanthren-17-one 5a. White solid, mp >240 °C, yield 73%, 143.1 mg. 1H NMR (500 MHz, CDCl3) δ 7.42 (d, J = 1.2 Hz, 1H), 7.04 (d, J = 8.1 Hz, 2H), 6.99 (d, J = 8.4 Hz, 2H), 6.79 (s, 1H), 6.32 (s, 1H), 3.01 – 2.82 (m, 2H), 2.50 (dd, J = 19.0, 8.8 Hz, 1H), 2.38 – 2.30 (m, 1H), 2.27 (s, 3H), 2.19 – 2.10 (m, 1H), 2.09 – 1.97 (m, 2H), 1.95 – 1.88 (m, 1H), 1.67 – 1.39 (m, 7H), 0.91 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 220.9, 155.1, 141.4, 136.1, 133.7, 133.2, 132.8, 130.1, 127.2, 115.3, 114.1, 50.5, 48.1, 44.0, 38.2, 36.0, 31.6, 29.6, 26.5, 26.1, 21.7, 21.1, 14.0. MS (ESI) m/z: 391 [M-H]-. Anal. Calcd for C25H28O2S: C, 76.49%; H, 7.19%. Found: C, 76.43%; H, 7.32%.
NH
S Chemical Formula: C15H13NSMass: 239
3-(p-Tolylthio)-1H-indole 5b.10 White solid, mp 122-124 oC (lit. 125-126 oC), yield 86%, 102.8 mg. 1H NMR (500 MHz, CDCl3) δ 8.21 (s, 1H), 7.61 (d, J = 7.4 Hz, 1H), 7.35 (d, J = 8.7 Hz, 2H), 7.23 (t, J = 7.5 Hz, 1H), 7.14 (t, J = 7.4 Hz, 1H), 7.05 – 6.98 (m, 2H), 6.95 (d, J = 6.8 Hz, 2H), 2.22 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 135.5, 134.6, 133.8, 129.6, 128.6, 128.2, 125.3, 122.1, 119.9, 118.7, 110.7, 102.3, 20.0. GC-MS (EI) m/z: 239.
NH
NCS Chemical Formula: C16H12N2S
Mass: 264
3-(p-tolylthio)-1H-indole-5-carbonitrile 5c.11 White solid, mp 202-203 oC (lit. 201-203 oC), yield 93%, 122.3 mg. 1H NMR (500 MHz, DMSO-d6) δ 12.08 (s, 1H), 7.86 (d, J = 2.7 Hz, 1H), 7.69 (d, J = 1.5 Hz, 1H), 7.53 (d, J = 8.4 Hz, 1H), 7.40 (dd, J = 8.5, 1.6 Hz, 1H), 6.92 – 6.82 (m, 4H), 2.05 (s, 3H). 13C NMR (125 MHz, DMSO-d6) δ 138.0, 134.3, 134.2, 133.9, 129.1, 128.0, 125.8, 124.4, 123.1, 119.7, 113.3, 101.8, 101.4, 19.9. GC-MS (EI) m/z: 264.
NH
OS Chemical Formula: C16H15NOS
Mass: 269
5-methoxy-3-(p-tolylthio)-1H-indole 5d.11 Light oil, yield 89%, 120 mg. 1H NMR (500 MHz, CDCl3) δ 8.24 (s, 1H), 7.34 (d, J = 2.7 Hz, 1H), 7.22 (d, J = 8.8 Hz, 1H),
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6.99 (d, J = 2.5 Hz, 1H), 6.98 – 6.90 (m, 4H), 6.84 (dd, J = 8.8, 2.5 Hz, 1H), 3.72 (s, 3H), 2.19 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 154.1, 134.7, 133.6, 130.4, 130.2, 129.0, 128.6, 125.1, 112.6, 111.5, 101.8, 99.9, 54.9, 19.9. GC-MS (EI) m/z: 269.
NH
SS Chemical Formula: C20H21NS2Exact Mass: 339.1115
Elemental Analysis: C, 70.75; H, 6.23; N, 4.13; S, 18.89
2,5-dimethyl-3,4-bis(p-tolylthio)-1H-pyrrole 5e. White solid, mp 189-191 oC, yield 92%, 156 mg. 1H NMR (500 MHz, DMSO-d6) δ 11.36 (s, 1H), 6.81 (d, J = 7.9 Hz, 4H), 6.66 (d, J = 7.9 Hz, 4H), 2.08 (s, 6H), 2.05 (s, 6H). 13C NMR (125 MHz, DMSO-d6) δ 135.6, 132.9, 132.5, 128.7, 124.6, 107.6, 19.9, 11.1. GC-MS (EI) m/z: 339. Anal. Calcd for C20H21NS2: C, 70.75%; H, 6.23%; N, 4.13%. Found: C, 70.54%; H, 6.59%; N, 4.28%.
Br
OO
Chemical Formula: C8H9BrO2Mass: 216
1-Bromo-2,4-dimethoxybenzene 7.12 Colorless oil. 1H NMR (500 MHz, CDCl3) δ 7.35 (d, J = 8.7 Hz, 1H), 6.43 (d, J = 2.8 Hz, 1H), 6.34 (dd, J = 8.7, 2.7 Hz, 1H), 3.81 (s, 3H), 3.74 (s, 3H). 13C NMR (125 MHz, CDCl3) δ 159.3, 155.6, 132.2, 104.9, 101.5, 99.0, 55.2, 54.6. GC-MS (EI) m/z: 216.
References[1] Kang, X.; Yan, R.; Yu, G.; Pang, X.; Liu, X.; Li, X.; Xiang, L.; Huang, G., Iodine-mediated thiolation of substituted naphthols/naphthylamines and arylsulfonyl hydrazides via C(sp2)-H bond functionalization. The Journal of Organic Chemistry 2014, 79 (21), 10605-10. [2] Xiao, F.; Chen, S.; Tian, J.; Huang, H.; Liu, Y.; Deng, G.-J., Chemoselective cross-coupling reaction of sodium sulfinates with phenols under aqueous conditions. Green Chem. 2016, 18 (6), 1538-1546.[3] Kundu, D.; Chatterjee, T.; Ranu, B., Magnetically Separable CuFe2O4 Nanoparticles Catalyzed Ligand-Free C-S Coupling in Water: Access to (E)- and (Z)-Styrenyl-, Heteroaryl and Sterically Hindered Aryl Sulfides. Advanced Synthesis & Catalysis. 2013, 355(11-12), 2285-1546.[4] Commercial chemical, CAS number: 1466548-02-6. [5] Prasad Ch, D.; Balkrishna, S. J.; Kumar, A.; Bhakuni, B. S.; Shrimali, K.; Biswas, S.; Kumar, S., Transition-metal-free synthesis of unsymmetrical diaryl chalcogenides from arenes and diaryl dichalcogenides. The Journal of organic chemistry 2013, 78 (4), 1434-43.[6] Yan, K.; Yang, D.; Sun, P.; Wei, W.; Liu, Y.; Li, G.; Lu, S.; Wang, H., Direct thiolation of methoxybenzenes with thiols under metal-free conditions by iodine catalysis. Tetrahedron Letters 2015, 56 (33), 4792-4795.[7] Parumala, S. K. R.; Peddinti, R. K., Iodine catalyzed cross-dehydrogenative C–S coupling by C(sp2)–H bond activation: direct access to aryl sulfides from aryl thiols.
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Green Chem. 2015, 17 (7), 4068-4072.[8] Tian, H.; Zhu, C.; Yang, H.; Fu, H., Iron or boron-catalyzed C-H arylthiation of substituted phenols at room temperature. Chemical Communications 2014, 50 (64), 8875-7.[9] Pang, X.; Xiang, L.; Yang, X.; Yan, R., Iodine-Mediated Synthesis of Aromatic Thioethers with Aromatic Amines and Sulfonyl Hydrazides in High Regioselectivity via C(sp2)–H Bond Functionalization. Advanced Synthesis & Catalysis 2016, 358 (2), 321-325.[10] Xiao, F.; Xie, H.; Liu, S.; Deng, G.-J., Iodine-Catalyzed Regioselective Sulfenylation of Indoles with Sodium Sulfinates. Advanced Synthesis & Catalysis 2014, 356 (2-3), 364-368.[11] Liu, Y.; Zhang, Y.; Hu, C.; Wan, J.-P.; Wen, C., Synthesis of 3-sulfenylated indoles by a simple NaOH promoted sulfenylation reaction. RSC Advances 2014, 4 (67), 35528.[12] Song, S.; Sun, X.; Li, X.; Yuan, Y.; Jiao, N., Efficient and Practical Oxidative Bromination and Iodination of Arenes and Heteroarenes with DMSO and Hydrogen Halide: A Mild Protocol for Late-Stage Functionalization. Organic letters 2015, 17 (12), 2886-9.
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2. NMR Spectra of All Products
1H NMR of 3a
13C NMR of 3a
13
1H NMR of 3b
13C NMR of 3b
14
1H NMR of 3c
13C NMR of 3c
15
1H NMR of 3d
13C NMR of 3d
16
1H NMR of 3e
13C NMR of 3e
17
1H NMR of 3f
13C NMR of 3f
18
1H NMR of 3g
13C NMR of 3g
19
1H NMR of 3h
13C NMR of 3h
20
1H NMR of 3i
13C NMR of 3i
21
1H NMR of 3j
13C NMR of 3j
22
1H NMR of 3k
13C NMR of 3k
23
1H NMR of 3l
13C NMR of 3l
24
1H NMR of 3m
13C NMR of 3m
25
1H NMR of 3n
13C NMR of 3n
26
1H NMR of 3o
13C NMR of 3o
27
1H NMR of 3p
13C NMR of 3p
28
1H NMR of 3q
13C NMR of 3q
29
1H NMR of 3r
13C NMR of 3r
30
1H NMR of 3s
13C NMR of 3s
31
1H NMR of 3t
13C NMR of 3t
32
1H NMR of 3u
13C NMR of 3u
33
1H NMR of 4a
13C NMR of 4a
34
1H NMR of 4a’
13C NMR of 4a’
35
1H NMR of 4b
13C NMR of 4b
36
1H NMR of 4c
13C NMR of 4c
37
1H NMR of 4d
13C NMR of 4d
38
1H NMR of 5a
13C NMR of 5a
39
1H NMR of 5b
13C NMR of 5b
40
1H NMR of 5c
13C NMR of 5c
41
1H NMR of 5d
13C NMR of 5d
42
1H NMR of 5e
13C NMR of 5e
43
1H NMR of 7
13C NMR of 7