A catalytic asymmetric synthesis of 5,5-dimethylproline
摘要:
The methyl ester derivative of commercially available N-acetyl-allylglycine readily undergoes cross-metathesis with 2-methylbut-2-ene and ruthenium-alkylidene catalyst to afford the prenylglycine derivative. Acid-catalysed cyclisation then affords 5,5-dimethylproline in near quantitative yield and enantioselectivity. (c) 2005 Published by Elsevier Ltd.
A catalytic asymmetric synthesis of 5,5-dimethylproline
摘要:
The methyl ester derivative of commercially available N-acetyl-allylglycine readily undergoes cross-metathesis with 2-methylbut-2-ene and ruthenium-alkylidene catalyst to afford the prenylglycine derivative. Acid-catalysed cyclisation then affords 5,5-dimethylproline in near quantitative yield and enantioselectivity. (c) 2005 Published by Elsevier Ltd.