Tetrahedron Letters

Synthesis of new chiral ferrocenyl P, N-ligands with a benzoxazole ring and their application in Ag-catalyzed asymmetric [3+ 2] cycloaddition

S Yan, C Zhang, YH Wang, Z Cao, Z Zheng, XP Hu

Index: Yan, Sheng; Zhang, Cheng; Wang, Ya-Hui; Cao, Zhong; Zheng, Zhuo; Hu, Xiang-Ping Tetrahedron Letters, 2013 , vol. 54, # 28 p. 3669 - 3672

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Citation Number: 11

Abstract

New chiral ferrocenyl P, N-ligands with a benzoxazole ring as the N-donor group have been synthesized from 2-aminophenol through a three-step transformation and successfully employed in the Ag-catalyzed asymmetric [3+ 2] cycloaddition of azomethine ylides with electron-deficient alkenes. High diastereoselectivities, excellent enantioselectivities, and good yields have been achieved for a variety of substrates, demonstrating the potential of ...

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