Intermolecular reactions of new halovinylcarbenes - versatile synthesis of (halovinyl) cyclopropanes
作者:Wolfgang Göthling、Schahab Keyaniyan、Armin De Meijere
DOI:10.1016/s0040-4039(01)90192-3
日期:1984.1
Deprotonation of the oligohalopropenes 1A, 1B, 1C with LiTMP or LiHMDS in the presence of olefins 3 led to halovinylcyclopropanes 4A, 4B, 4C by intermolecular trapping of the corresponding halovinylcarbenes. Mixtures 4B/4C and (dichloroethenylidene) cyclopropanes 5 can be obtained from 1,1,2,3,3-pentachloropropane (6), LiHMDS and olefins 3.
在烯烃3存在下用LiTMP或LiHMDS使低卤代丙烯1A,1B,1C去质子化,通过分子间俘获相应的卤代戊基卡宾而导致卤代戊基环丙烷4A,4B,4C。混合物4B / 4C和(二氯乙烯亚基)环丙烷5可以从1,1,2,3,3-五氯丙烷(6),LiHMDS和烯烃3中获得。