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Catalytic Enantioselective Crossed Aldehyde–Ketone Benzoin Cyclization

2006; Wiley; Volume: 45; Issue: 21 Linguagem: Inglês

10.1002/anie.200600268

1521-3773

Hiroshi Takikawa, Yoshifumi Hachisu, Jeffrey W. Bode, Keisuke Suzuki,

Synthetic Organic Chemistry Methods

Joining together: The catalytic, asymmetric benzoin cyclization of a wide variety ketoaldehydes using chiral triazolium salts of type 1 has been carried out (see scheme). The corresponding cyclized products were prepared in high yields and with excellent enantioselectivities. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z600268_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.