Short Enantioselective Syntheses of trans-5-Alkylprolines from New Functionalized Amino Alcohols
摘要:
GraphicsAmino alcohols, having an enol ether function, cyclized in acidic medium to give quantitatively diastereosomerically pure bicyclic compounds that were transformed in five steps in enantiopure trans-5-alkylproline derivatives.
Short Enantioselective Syntheses of trans-5-Alkylprolines from New Functionalized Amino Alcohols
摘要:
GraphicsAmino alcohols, having an enol ether function, cyclized in acidic medium to give quantitatively diastereosomerically pure bicyclic compounds that were transformed in five steps in enantiopure trans-5-alkylproline derivatives.
Chiral unsaturated beta-amino alcohols possessing a dialkylamino function cyclize in the presence of Pd(II) catalysts and reoxidants to afford enantiopure bicyclic oxazolidines with total regio- and stereocontrol. The scope and limitations of this transformation have been studied.
Short Enantioselective Syntheses of <i>trans</i>-5-Alkylprolines from New Functionalized Amino Alcohols
GraphicsAmino alcohols, having an enol ether function, cyclized in acidic medium to give quantitatively diastereosomerically pure bicyclic compounds that were transformed in five steps in enantiopure trans-5-alkylproline derivatives.