Tetrahedron 70 (2014) 2059e2064

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Tetrahedron

journal homepage: www.elsevier .com/locate/ tet

Tetrahedron Vol. 70, Issue 12, 2014

Contents

REPORT

Organic reactions mediated by tetrachlorosilane

pp 2065e2080 Sergio Rossi, Maurizio Benaglia*, Andrea Genoni

ARTICLES

Facile synthesis of aromatic unsymmetrical fluorine-containing acyloins through the reductive trifluoroacetylation ofbenzaldehyde and transposition of the carbonyl group

pp 2081e2087

Hirofumi Maekawa*, Masashi Kudo, Yutaro Nishiyama, Kazuyuki Shimizu, Mitsuhiro Abe

n-Bu

Contents / Tetrahedron 70 (2014) 2059e20642060

Commutative reduction of aromatic ketones to arylmethylenes/alcohols by hypophosphites catalyzed by Pd/C under pp 2088e2095

biphasic conditions Carole Guyon, Marc Baron, Marc Lemaire, Florence Popowycz*, Estelle M�etay*

Enantioselective synthesis of macrolactone core of the natural product Sch725674 pp 2096e2101

Sunil Kumar Sunnam, Kavirayani R. Prasad*

Diastereoselective deprotonative metalation of chiral ferrocene derived acetals and esters using mixed pp 2102e2117

lithiumecadmium and lithiumezinc combinations Gandrath Dayaker, Aare Sreeshailam, D. Venkata Ramana, Floris Chevallier, Thierry Roisnel, Shinsuke Komagawa, Ryo Takita,Masanobu Uchiyama*, Palakodety Radha Krishna*, Florence Mongin*

Fe IO

OR

R =O

OO

O

OLi-Cd Base

orLi-Zn Base

then I2

DiastereoselectiveDeprotonative Metalation

Copper-mediated trifluoromethylation of potassium alkynyltrifluoroborates with Langlois’ reagent pp 2118e2121

Srinivas Reddy Dubbaka*, Shashidhar Nizalapur, Azmi Reddy Atthunuri, Manohar Salla, Thresen Mathew

Contents / Tetrahedron 70 (2014) 2059e2064 2061

A rapid and efficient protocol for the synthesis of novel nitrothiazolo[3,2-c]pyrimidines via microwave-mediated pp 2122e2128

Mannich cyclisation Muhammet Yıldırım*, Derya Celikel, Yasar D€ur€ust, David W. Knight, Benson M. Kariuki

Bioactive polyketides from the fungus Astrocystis sp. BCC 22166 pp 2129e2133

Jittra Kornsakulkarn, Siriporn Saepua, Somjit Komwijit, Pranee Rachtawee, Chawanee Thongpanchang*

A synthesis of 5-hydroxysedamine using hydroformylation pp 2134e2140

Roderick W. Bates*, Nur Filza bte Mohamed Aslam, Chi H. Tang, Oliver Simon

Ph

HO NOHMe

Ph

O NTs

OMe SiMe

CO

3

N-Alkyl- and N-aryl-dithieno[3,2-b:20,30-d]pyrrole-containing organic dyes for efficient dye-sensitized solar cells pp 2141e2150

Akhil Gupta*, Melissa M.A. Kelson, Vanessa Armel, Ante Bilic, Sheshanath V. Bhosale*

Two new organic sensitizers,1 and 2, consisting of an electron donating (triphenylamine) and an electron accepting (cyanoacrylic acid) functionalitylinked by two different rigidified p-spacers were applied for dye-sensitized solar cells. UVeVis absorption spectra of 1 and 2 revealed enhanced spec-tral response when compared with an oligothiophene analogue, and they yielded 6.1% and 6.2% power conversion efficiencies, respectively.

Contents / Tetrahedron 70 (2014) 2059e20642062

Synthesis of fused-tricyclic indole derivatives through an acid-promoted skeletal rearrangement pp 2151e2160

Takuya Yokosaka, Tomoya Kanehira, Hiroki Nakayama, Tetsuhiro Nemoto, Yasumasa Hamada*

Identification of 3-enol sulfate of Cypridina luciferin, Cypridina luciferyl sulfate, in the sea-firefly Cypridina (Vargula) pp 2161e2168

hilgendorfii Mitsuhiro Nakamura, Tomoko Suzuki, Norihiro Ishizaka, Jun-ichi Sato, Satoshi Inouye*

Cypridina luciferinCypridina luciferyl sulfate

N

N

H

N

O

H

N NH2

NHN

H

N

N

N

O

H

N NH2

NHN

H

HO3S

PAPS

Sulfotransferase

PAP

Luciferase

O2

N

N

NH

H

N NH2

NHN

H

O + CO2

+ hυ

Oxyluciferin

Alkylation of 2H-1,2,3-benzothiadiazine 1,1-dioxides. Formation of a new family of mesoionic compounds pp 2169e2174

M�arta Porcs-Makkay, Rita Kapiller-Dezs€ofi, L�aszl�o P�ark�anyi, Ang�ela Pandur, Gyula Simig, Bal�azs Volk*

Copper-catalyzed Z-selective semihydrogenation of alkynes with hydrosilane: a convenient approach to cis-alkenes pp 2175e2179

Guang-Hui Wang, Huai-Yu Bin, Miao Sun, Shu-Wei Chen, Ji-Hong Liu, Chong-Min Zhong*

Contents / Tetrahedron 70 (2014) 2059e2064 2063

A novel construction of quino-fused tropone skeleton: first synthesis of 12H-benzo[4,5]cyclohepta[1,2-b]quinolin-12- pp 2180e2189

one derivatives Wentao Gao*, Xueda Xing, Yang Li, Shuai Lan

Regioselective quadruple domino aldolization/aldol condensation/Michael/SNAr-cyclization: construction of hexacyclic pp 2190e2194

indeno-fused C-nor-D-homo-steroid frameworks Tanmoy Chanda, Sushobhan Chowdhury, B. Janaki Ramulu, Suvajit Koley, Raymond C.F. Jones, Maya Shankar Singh*

Oxidative C(Sp3)eH activation and CeN cleavage of N-methyl amines under transition-metal-free condition for pp 2195e2202

synthesis of methylene-bridged bis-1,3-diketones Xiaohu Wang, Yi Wang, Yu Yuan*, Chun-Hui Xing*

Contents / Tetrahedron 70 (2014) 2059e20642064

Tetrahedron reports on organic chemistry

pp IeXXITetrahedron Perspectives p XXII Tetrahedron reports on organic chemistry order form p XXIII Tetrahedron reports on organic chemistry author index pp XXIVeXXXIII

*Corresponding authorSupplementary data available via ScienceDirect

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ISSN 0040-4020