Optically Active 2,3‐Allenoates
Under mild conditions, optically active 2,3‐allenoates were synthesized from enantioenriched propargylic mesylates with moderate to excellent yields and high efficiency of chirality transfer by using palladium(0) bis(dibenzylideneacetone) (3 mol%) with (S)‐(−)‐5,5′‐bis(diphenylphosphino)‐4,4′‐bi‐1,3‐benzodioxole [(S)‐SEGPHOS] (3 mol%) as the catalyst and diammonium hydrogen phosphate (1.1 equiv .) as the base.
Document Type: Research Article
Affiliations: Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, 3663 North Zhongshan Lu, Shanghai 200062, People's Republic of China, Fax: (+86) 21-62609305
Publication date: March 11, 2013