Preparation and some properties of 7,7-dilithionorbornane
作者:Cornelis P. Vlaar、Gerhard W. Klumpp
DOI:10.1016/0040-4039(91)80659-t
日期:1991.6
7,7-Dilithionorbornane 4a is formed from 7,7-dibromonorbornane 4b by reduction with 4,5 equiv of lithium p,p′-di-tert-butylbiphenyl at −100°C,at which temperature it adds to ethylene. On warming it rearranges to 1-1ithio-5-(2-lithioethyl)cyclopentene 5.
Komppa; Hasselstroem, Justus Liebigs Annalen der Chemie, 1932, vol. 497, p. 122,126
作者:Komppa、Hasselstroem
DOI:——
日期:——
Oxidative coupling of 7,7-dilithionorbornane; 7,7′-dilithio-7,7′-dinorbornyl, a new vic-dilithioalkane prone to a new mode of decomposition
作者:Cornelis P. Vlaar、Gerhard W. Klumpp
DOI:10.1016/s0040-4039(00)60647-0
日期:1993.9
7,7-Dilithionorbornane reacts with butyl halides at -100-degrees-C to give 7,7'-dilithio-7,7'-dinorbornyl (30%), which is easily oxidized to 7.7-dinorbornylidene.