Effect of Microwaves in the Chiral Switching Asymmetric Michael Reaction
作者:S. Narasimhan、S. Velmathi
DOI:10.3390/80200256
日期:——
HighlyenantioselectiveMichael reactions of malonates with cyclic enones are achieved in remarkably less time under microwave irradiation using newly developed heterobimetallic catalysts.
The Michael Reaction of Methanetricarboxylic Esters. A Simple Method for Two-Carbon Chain Elongation
作者:Jacek Skarżewski
DOI:10.1055/s-1990-27111
日期:——
The conjugate addition of triethyl methanetricarboxylate to various Michael acceptors proceeds readily under solid-liquid phase-transfer catalysis conditions. The reaction scope and limitations have been elaborated.
Phase-Transfer Catalysis of the Michael Addition to α,β-Unsaturated Aldehydes
作者:G. V. Kryshtal、V. V. Kulganek、V. F. Kucherov、L. A. Yanovskaya
DOI:10.1055/s-1979-28574
日期:——
Interphase catalysis in Michael and Knoevenagel reactions with ?,?-unsaturated aldehydes
作者:G. V. Kryshtal'、V. V. Kul'ganek、V. F. Kucherov、L. A. Yanovskaya
DOI:10.1007/bf00941112
日期:1978.12
Novel heterobimetallic catalysts for asymmetric Michael reactions
作者:S Velmathi、S Swarnalakshmi、S Narasimhan
DOI:10.1016/s0957-4166(02)00737-1
日期:2003.1
The newly developed chiral catalysts 1 and 2 show opposite enantioselectivity in Michael addition reactions of cyclic enones and malonates resulting in the production of both enantiomers of products in good chemical yield and enantiomeric excess. Al-27 NMR studies showed the formation of different types of complexes for catalysts 1 and 2 and the enantioselectivity was found to be dependent on the nature of the aluminium complex formed. Scope of the reaction was extended to other Michael donors such as nitro alkanes and thiols. (C) 2003 Elsevier Science Ltd. All rights reserved.