Synfacts 2006(7): 0691-0691  
DOI: 10.1055/s-2006-941859
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart · New York

Spiroborate Ether Mediated Enantioselective Reduction of Oxime Ethers

Contributor(s): Mark Lautens, Yann Béthuel
Y. Chu, Z. Shan*, D. Liu, N. Sun
Wuhan University, P. R. of China
Further Information

Publication History

Publication Date:
22 June 2006 (online)

Significance

In the present paper, the authors describe the borane reduction of oxime ethers mediated by a chiral tetracoordinated spiroborate ester. Enantioenriched secondary amines are accessed in excellent ee values and yields. This represents an alternative to reductions centered around catalysts based on complexes of Rh, Ir, Ru and Ti.