Efficient Demetalation of Fischer Alkoxy- and Amino-Biscarbene Complexes of Chromium via CO-Promoted Sulfuration and Selenylation
作者:Zheng、Jinzhu Chen、Ning Luo、Yu、Xiuwen Han
DOI:10.1021/om060288m
日期:2006.10.1
with elemental selenium of Fischer biscarbene complexes of chromium have been achieved by means of in-situ-generated SCO and SeCO, efficiently affording thio- and selenocarboxylates. Intramolecular reactivity inversion of the chromium carbene carbon bonds (CrC) in an alkoxy−alkoxy biscarbene complex was realized by replacement of the alkoxy group bonded to the more reactive CrC carbon atom with an amino