Mechanistic investigation on the reaction of 1,1-di-p-substituted phenyl-2,2-dinitroethylene with 1-benzyl-1,4-dihydronicotin-amide in oxygen saturated acetonitrile—clear evidence for intermediate mechanism
The reaction of 1-benzyl-1,4-dihydronicotinamide with a series of 1,1-di-p-substituted-phenyl-2,2-dinitroethylenes in oxygen-saturated acetonitrile produced various amounts of the corresponding ethanes and diaryl ketones according to the electronic structure of the substituent groups indicating a spectrum of intermediate mechanism between polar mechanism and SET mechanism. (c) 2005 Elsevier Ltd. All rights reserved.
Neue Polyisocyanatsgemische der Diphenylmethanreihe, sowie ihre Verwendung als Aufbaukomponente bei der Herstellung von Polyurethankunststoffen nach dem Isocyanat-Polyadditionsverfahren
申请人:BAYER AG
公开号:EP0046917B1
公开(公告)日:1983-12-07
Composition d'isocyanates de bas point de fusion à structure diphényléthane, son procédé de fabrication; application à la fabrication de polyuréthannes