Redox-Switchable Phase Tags – Facile Mitsunobu Reactions using Ferrocenyl-Tagged Triphenylphosphine
作者:Christoph A. Fleckenstein、Herbert Plenio
DOI:10.1002/adsc.200606024
日期:2006.6
The use of redox-switched phasetags in ferrocenyl-substituted triphenylphosphine combined with DBAD (di-tert-butyl azodicarboxylate) allows high yield (>90 %) Mitsunobu transformations without the need for the chromatographic purification of the products. The redox-switchable phosphine can be easily synthesized in two steps from 4-bromoaniline, ferrocene and chlorodiphenylphosphine. It is separated