Quinidine thiourea-catalyzed enantioselective synthesis of β-nitrophosphonates: beneficial effects of molecular sieves
摘要:
An efficient method for enantioselective synthesis of beta-nitrophosphonates via the Michael addition of diphenyl phosphite to nitroalkenes using the readily available quinidine thiourea organocatalyst has been developed. The desired beta-nitrophosphonates were obtained in good ee values. Molecular sieves were found to be crucial for achieving high reproducible yields in this reaction. (C) 2011 Elsevier Ltd. All rights reserved.
Quinidine thiourea-catalyzed enantioselective synthesis of β-nitrophosphonates: beneficial effects of molecular sieves
作者:Santhi Abbaraju、Mayur Bhanushali、Cong-Gui Zhao
DOI:10.1016/j.tet.2011.07.059
日期:2011.9
An efficient method for enantioselective synthesis of beta-nitrophosphonates via the Michael addition of diphenyl phosphite to nitroalkenes using the readily available quinidine thiourea organocatalyst has been developed. The desired beta-nitrophosphonates were obtained in good ee values. Molecular sieves were found to be crucial for achieving high reproducible yields in this reaction. (C) 2011 Elsevier Ltd. All rights reserved.