Ni-Catalyzed Enantioselective Reductive Diarylation of Activated Alkenes by Domino Cyclization/Cross-Coupling
作者:Kuai Wang、Zhengtian Ding、Zhijun Zhou、Wangqing Kong
DOI:10.1021/jacs.8b08190
日期:2018.10.3
A Ni-catalyzed enantioselective reductive diarylation of activated alkenes by domino cyclizative/ cross-coupling of two aryl bromides is developed. This reaction proceeds under very mild conditions and shows broad substrate scope, without requiring the use of preformed organometallic reagents. Moreover, this approach provides direct access to various bis-heterocycles bearing all-carbon quaternary centers in synthetically useful yields (up to 81%) with excellent enantioselectivity (>30 examples, 90-99% ee).
Intra- and intermolecular hetero-Diels-Alder reactions. 17. Intramolecular hetero-Diels-Alder reaction of alkylidene- and benzylidenepyrazolones and benzylideneisoxazolones. Investigations toward the conformation of the transition state
作者:Lutz F. Tietze、Thomas Brumby、Martina Pretor、Gerd Remberg
DOI:10.1021/jo00239a024
日期:1988.2
Thiyl radical induced cyclizations of dienes. Cyclization of .alpha.-acoradiene, .alpha.-bulnesene, and geranyl acetate to cedrane, patchulane, and cyclogeranyl acetate products
作者:M. E. Kuehne、R. E. Damon
DOI:10.1021/jo00431a001
日期:1977.5
A nonenzymic model intermediate for the coenzyme B12 dependent isomerization of methylmalonyl coenzyme A to succinyl coenzyme A