Improvement in the Regioselectivity in the Ruthenium-catalyzed Metathesis Reaction of 2-Azabicyclo[2.2.1]hept-5-en-3-one (ABH) with Allyltrimethylsilane
作者:Minoru Ishikura、Miyako Hasunuma、Makoto Saijo
DOI:10.3987/com-03-9924
日期:——
2-Azabicyclo[2.2.1]hept-5-en-3-one (ABH) (1) with N-trialkylsilyl group was subjected to a ring-opening cross-metathesis reaction with allyltrimethylsilane in the presence of a ruthenium catalyst, allowing the predominate formation of rel-(3R,5S)-3-(4,4,-dimethyl-4-silapentyl)-5-ethylpyrrolidin-2-one (5) over rel-(3R,5S)-5-(4,4,-dimethyl-4-silapentyl)-3-ethylpyrrolidin-2-one (6).