Synthesis and structure of novel sulfur bridged cyclic di-and tetraalkynes

S Braverman, M Cherkinsky, ML Birsa, S Tichman…

Index: Braverman, S; Cherkinsky, M; Birsa; Tichman, S; Goldberg, I Tetrahedron Letters, 2001 , vol. 42, # 42 p. 7485 - 7488

Full Text: HTML

Citation Number: 7

Abstract

Some novel sulfur bridged 13-to 30-membered cyclic di-and tetraalkynes derived from 1, 2-, 1, 3-and 1, 4-dihydroxybenzene and 1, 2-bis (bromomethyl) benzene were synthesized and their structures confirmed by X-ray analysis. The unexpected formation of 2, 6-divinyl-1, 4- dithiin during Na2S/alumina induced cyclization was also observed and the reaction mechanism is discussed.

~0%

Simple and efficient CuI/PEG-400 system for hydroxylation of...

[Chen, Junmin; Yuan, Tangjun; Hao, Wenyan; Cai, Mingzhong Catalysis Communications, 2011 , vol. 12, # 15 p. 1463 - 1465]

… , characterization and use of 1, 3-disulfonic acid imidazo...

[Shirini, Farhad; Khaligh, Nader Ghaffari; Akbari-Dadamahaleh, Somayeh Journal of Molecular Catalysis A: Chemical, 2012 , vol. 365, p. 15 - 23]

Hydride-promoted demethylation of methyl phenyl ethers

[Majetich, George; Zhang, Yong; Wheless, Karen Tetrahedron Letters, 1994 , vol. 35, # 47 p. 8727 - 8730]

One-pot hydrothermal synthesis of mesoporous V-SBA-16 with a...

[Zhao, Lina; Dong, Yongli; Zhan, Xinlin; Cheng, Yi; Zhu, Yujun; Yuan, Fulong; Fu, Honggang Catalysis Letters, 2012 , vol. 142, # 5 p. 619 - 626]

Ligand-and base-free synthesis of phenols by rapid oxidation...

[Sawant, Sanghapal D.; Hudwekar, Abhinandan D.; Aravinda Kumar; Venkateswarlu, Vunnam; Singh, Parvinder Pal; Vishwakarma, Ram A. Tetrahedron Letters, 2014 , vol. 55, # 4 p. 811 - 814]