1058705-71-7Relevant articles and documents
Asymmetric synthesis of 3,4-annulated cyclopentenones from cycloalkenyl ketones and vinyl carbamates by diastereoselective carbonyl addition/conrotatory 4π ring closure
Siemer, Michael,Froehlich, Roland,Hoppe, Dieter
experimental part, p. 2264 - 2270 (2009/04/07)
1-Lithiated O-vinyl carbamates add with high induced diastereoselectivity onto enantiomerically pure cycloalk-1-enyl (1-dibenzylamino)alkyl ketones. Subsequent O-carbamoyl migration, followed by a torquoselective, antarafacial 4π ring closure, leads to ho