Synthesis and <i>C</i>-Alkylation of Hindered Aldehyde Enamines
作者:David M. Hodgson、Christopher D. Bray、Nicholas D. Kindon、Nigel J. Reynolds、Steven J. Coote、Joann M. Um、K. N. Houk
DOI:10.1021/jo802016t
日期:2009.2.6
hindered lithium amides with terminal epoxides is described whereby aldehydeenamines are produced via a previously unrecognized reaction pathway. Some of these aldehydeenamines display unprecedented C-alkylation reactivity toward unactivated primary and secondary alkyl halides. For comparison, the reactivity of aldehydeenamines synthesized via a traditional condensation method was examined. C- rather
Improved rhodium catalyzed hydroformylation of internal olefins
申请人:EXXON CHEMICAL PATENTS INC.
公开号:EP0195656A1
公开(公告)日:1986-09-24
Internal olefins are rapidly hydroformylated in high selectivity to aldehyde product using homogeneous rhodium catalysts modified with highly sterically hindered tricycloalkyl phosphine ligands under mild process conditions.