14300-29-9Relevant articles and documents
Transition-Metal-Free Sulfuration/Annulation of Alkenes: Economical Access to Thiophenes Enabled by the Cleavage of Multiple C-H Bonds
Chen, Liang,Min, Hao,Zeng, Weilan,Zhu, Xiaoming,Liang, Yun,Deng, Guobo,Yang, Yuan
supporting information, p. 7392 - 7395 (2019/01/03)
A novel, atom economical, and transition-metal-free strategy for the synthesis of thiophenes from substituted buta-1-enes with potassium sulfide has been presented. The reaction achieves double C-S bond formations via cleavage of multiple C-H bonds and provides an efficient approach to access various functionalized thiophenes. Moreover, the strategy can also be used for the synthesis of thiophenes from 1,4-diaryl-1,3-dienes. Mechanistically, DMSO plays a role of oxidant and S3?- in situ generated from K2S is involved.
1-(2-Methyl-5-phenyl-3-thienyl)-2-(3-methyl-5-phenyl-2-thienyl)-3,3,4,4,5, 5-hexafluorocyclopent-1-ene: A novel photochromic hybrid diarylethene
Pu, Shou-Zhi,Liu, Gang,Chen, Bing,Wang, Ru-Ji
, p. o599-o601 (2007/10/03)
The title compound, C27H18F6S2, a novel photochromic hybrid diarylethene derivative containing 2- and 3-thienyl substituents, is one of the most promising photochromic candidates with shorter wavelength for optical storage and other optoelectronic devices. In the crystal structure, the molecule adopts a photoactive antiparallel conformation. The distance between the two reactive C atoms, i.e. the ring C atoms to which the methyl groups are attached, is 3.430 (4) A. The dihedral angles between the thienyl and adjacent phenyl rings are 26.8 (2) and 33.98 (9)°.
Synthesis of Unsymmetrical Arylthiophenes and Bithienyls via Oxidative Cyclization of 1,3-Butadiene-1-thiols
Campaigne, E.,White, R.L.
, p. 367 - 373 (2007/10/02)
Oxidative cyclization of 2-mercapto-5-aryl-2,4-pentanedienoic acids with iodine produced the respective 5-aryl-2-thenoic acids.The method was also suitable for the synthesis of unsymmetrical substituted 2,2,-bithienyls, and 2,3'-bithienyls.The synthesis o