Synthesis of silatranyl- and 3,7,10-trimethylsilatranyl-cyclopropanes
摘要:
Treatment of silatranyl- and 3,7,10-trimethylsilatranyl-ethylenes with diazomethane/Pd(OAc)2 gives the corresponding silatranylcyclopropanes in high yields.
Palladium-Catalyzed Cyclopropanation of Alkenyl Silanes by Diazoalkanes: Evidence for a Pd<sup>0</sup>Mechanism
作者:Guillaume Berthon-Gelloz、Mélanie Marchant、Bernd F. Straub、Istvan E. Marko
DOI:10.1002/chem.200802052
日期:2009.3.9
Pd0 does the trick! Alkenylsilanes are efficiently cyclopropanated by diazoalkanes at low Pd loadings (see scheme). Clear evidence for the involvement of a Pd0 resting state for this reaction is given.
Treatment of silatranyl- and 3,7,10-trimethylsilatranyl-ethylenes with diazomethane/Pd(OAc)2 gives the corresponding silatranylcyclopropanes in high yields.