107170-79-6Relevant academic research and scientific papers
Switchable reactivity between vinyl azides and terminal alkyne by nano copper catalysis
Cen, Jinghe,Wu, Yaodan,Li, Jianxiao,Huang, Liangbin,Wu, Wanqing,Zhu, Zhongzhi,Yang, Shaorong,Jiang, Huanfeng
, p. 2090 - 2094 (2019)
A novel nano copper-catalyzed substrate-dependent chemodivergent transformation of vinyl azides with a terminal alkyne is disclosed. 2,5-Disubstituted pyrroles were selectively obtained in high yield with aryl alkynes and aliphatic alkynes, whereas 2,3,4-trisubstituted pyrroles were formed with silylated alkynes. This switchable method provides a controllable and facile access to both multisubstituted pyrrole scaffolds with high efficiency, excellent regioselectivity, and good functional group compatibility.
5(4H)-oxazolones. Part XI. Cycloaddition reaction of oxazolones and munchnones to triphenylvinylphosphonium salts as synthetic equivalents of alkynes
Clerici, Francesca,Gelmi, Maria Luisa,Trimarco, Pasqualma
, p. 5763 - 5774 (2007/10/03)
5(4H)-Oxazolones 1 and milnchnones 3 are reacted with triphenylvinylphosphonium bromide 2a to give, through a cycloaddition reaction, pyrrole derivatives 4a-d and 7a-c unsubstituted at C-3 and C-4. The use of substituted vinylphosphonium salts 2b,c and dipoles 1 and 3 allows the isolation of 3-methylpyrroles 4e, f and 7d,e and 3-pyrrolecarboxylic acids 9a-c, respectively. The cycloaddition reactions proceed with high regionelectivity because of the positive interaction of phosphonium group of 2 and carbonyl group of dipoles 1 and 3.
ON THE REACTION OF N-VINYLIMINOPHOSPHORANES 3. A NOVEL ROUTE TO PHENYL-SUBSTITUTED PYRROLES BY THE REACTION OF N-(1-PHENYLVINYL)-IMINOPHOSPHORANES WITH α-BROMO KETONES
Iino, Yukio,Kobayashi, Tomoshige,Nitta, Makoto
, p. 2437 - 2441 (2007/10/02)
N-(1-phenylvinyl)iminotriphenylphosphorane or N-(1-phenyl-vinyl)iminotributylphosphorane reacted with α-bromo ketones to give phenyl-substituted pyrroles via a novel C-C bond formation followed by aza-Wittig reaction.
