Substituted Epoxides by Lithiation of Terminal Epoxides
作者:David M. Hodgson、Nigel J. Reynolds、Steven J. Coote
DOI:10.1021/ol048544j
日期:2004.11.1
Diamine-ligand-assisted direct hydrogen-lithium exchange allows the generation of nonstabilized (H-substituted) oxiranyllithium species and their subsequent trapping by Bu3SnCl and carbonyl-based electrophiles. This reaction provides a new concise route to alpha,beta-epoxystannanes and substituted epoxides.
Deprotonation–electrophile trapping of terminal epoxides
作者:David M. Hodgson、Eirene H. M. Kirton、Steven M. Miles、Stéphanie L. M. Norsikian、Nigel J. Reynolds、Steven J. Coote
DOI:10.1039/b502888d
日期:——
Organolithium-induced deprotonation of terminal epoxides in the presence of appropriate diamine ligands allows trapping with a range of electrophiles, yielding functionalised di- and tri-substituted epoxides in good yields and with control of stereochemistry at the epoxide.