94849-19-1Relevant academic research and scientific papers
Ruthenium-catalyzed coupling of α-carbonyl phosphoniums with sulfoxonium ylidesviaC-H activation/Wittig reaction sequences
Chen, Tian,Ding, Zhiqiang,Guan, Yuqiu,Zhang, Ruike,Yao, Jinzhong,Chen, Zhangpei
supporting information, p. 2665 - 2668 (2021/03/16)
A Ru(ii)-catalyzed coupling of various α-carbonyl phosphoniums with sulfoxonium ylides has been realized for the facile synthesis of 1-naphthols in good to excellent yields. This oxidant-free transformation proceeds through Ru-catalyzed C-H activation of phosphoniums, Ru-carbene insertion, and intramolecular Wittig reaction processes.
2-BENZOPYRYLIUM SALTS. 27. FORMATION OF SUBSTITUTED CHRYSENES FROM 1-METHYL-2-BENZOPYRYLIUM SALTS
Korobka, I. V.,Voloshina, A. I.,Kuznetsov, E. V.
, p. 1214 - 1218 (2007/10/02)
1-Methyl-2-benzopyrylium salts with a free β position of the heteroring primarily form substituted chrysenes.In alkaline media this process does not proceed through the intermediate formation of 1,5-diketones.
