Cyclopropenylcarbinol Derivatives as New Versatile Intermediates in Organic Synthesis: Application to the Formation of Enantiomerically Pure Alkylidenecyclopropane Derivatives
作者:Samah Simaan、Ahmad Masarwa、Elinor Zohar、Amnon Stanger、Philippe Bertus、Ilan Marek
DOI:10.1002/chem.200901074
日期:2009.8.24
The copper‐catalyzed carbomagnesiation (or hydrometalation) reaction of chiralcyclopropenylcarbinolderivatives, obtained by means of a kinetic resolution of secondary allylic alcohols, leads to an easy and straightforward preparation of enantiomericallypurealkylidenecyclopropanederivatives. The reaction mechanism is composed of a syn‐carbometalation followed by a syn‐elimination reaction. To gain
An Efficient, Facile, and General Stereoselective Synthesis of Heterosubstituted Alkylidenecyclopropanes
作者:Ahmad Masarwa、Amnon Stanger、Ilan Marek
DOI:10.1002/anie.200702713
日期:2007.10.22
Stereodivergent Carbometalation Reactions of Cyclopropenylcarbinol Derivatives
作者:Samah Simaan、Ilan Marek
DOI:10.1021/ol070974x
日期:2007.6.1
The diastereoselective formation of cyclopropylcarbinol from cyclopropenylcarbinol is very sensitive to the nature of the organometallic used for the carbometalation reaction. Both diastereoisomers can be obtained, at will, from the same precursor.
Enantiomerically Pure Cyclopropenylcarbinols as a Source of Chiral Alkylidenecyclopropane Derivatives
作者:Samah Simaan、Ahmad Masarwa、Philippe Bertus、Ilan Marek