92013-67-7Relevant 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
, 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.
A zirconocene-coupling route to substituted poly(p- phenylenedienylene)s: Band Gap tuning via conformational control
Lucht, Brett L.,Mao, Shane S. H.,Tilley, T. Don
, p. 4354 - 4365 (2007/10/03)
A series of substituted poly(p-phenylenediyne)s (1a-f) was synthesized by the palladium-catalyzed cross-coupling condensation of terminal dialkynylalkanes with substituted diiodobenzenes. Polymerizations were conducted with 1,4-diiodo-5-hexoxy-2-methoxybe
Titanium-Mediated Synthesis of E,E-Exocyclic Dienes. Application to the Preparation of Polycyclic Compounds
Nugent, William A.,Calabrese, Joseph C.
, p. 6422 - 6424 (2007/10/02)
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