Captodative substituent effects — Part XXXI olefins with captodative substitution in [2+2] cycloadditions
作者:Ch. De Cock、S. Piettre、F. Lahousse、Z. Janousek、R. Merényi、H.G. Viehe
DOI:10.1016/s0040-4020(01)97193-5
日期:1985.1
Olefins with captodative substitution are excellent partners in [2+2] cycloadditions leading to cyclobutane derivatives. The reaction rates increase with the radical stabilising power of the substituents. Thio- and selenoalkyl(aryl) substituted gemdifluoroolefins allow the synthesis of new cyclobutane derivatives.
具有Capdativeative取代的烯烃是导致环丁烷衍生物的[2 + 2]环加成反应的极好伙伴。反应速率随取代基的自由基稳定能力而增加。硫代和硒代烷基(芳基)取代的宝石二氟烯烃可以合成新的环丁烷衍生物。