| Literature DB >> 18616257 |
Naoyuki Shimada1, Masahiro Anada, Seiichi Nakamura, Hisanori Nambu, Hideyuki Tsutsui, Shunichi Hashimoto.
Abstract
Dirhodium(II) tetrakis[ N-tetrachlorophthaloyl-( S)- tert-leucinate], Rh 2( S-TCPTTL) 4, is an exceptionally effective catalyst for enantioselective tandem carbonyl ylide formation-cycloaddition reactions of 2-diazo-3,6-diketoesters with arylacetylene, alkoxyacetylene, and styrene dipolarophiles, providing cycloadducts in good to high yields and with enantioselectivities of up to 99% ee as well as with perfect exo diastereoselectivity for styrenes.Entities:
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Year: 2008 PMID: 18616257 DOI: 10.1021/ol8013733
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005