“Instant Methylide” Modification of the Corey–Chaykovsky Cyclopropanation Reaction
作者:James A. Ciaccio、Courtney E. Aman
DOI:10.1080/00397910500521837
日期:2006.6.1
Treatment of various electron-deficient alkenes in DMSO with stable, dry, equimolar mixtures of either Me3S(O) I/ KOt- Bu or Me3S(O) I/ NaH cleanly afforded the corresponding substituted cyclopropanes in good yields and short reaction times (<20 min for reactions at 50 - 60 degrees C using 0.4 - 4.0 mmol alkene).