Addition of water to zinc triflate promotes a novel reaction: stereoselective Mannich-type reaction of chiral aldimines with 2-silyloxybutadienes.
摘要：
A novel stereoselective Mannich-type reaction of chiral aldimines with 2-silyloxybutadienes in the presence of zinc triflate and water has been achieved. The diastereoselectivities of the products were 74-90% de, and no cycloadducts were detected. Classical Mannich-type products were also obtained by using zinc triflate and water with high diastereoselectivities.
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关键词：
diastereoselective syntheses, enantioselective syntheses (incl. cis/trans‐isomerism amines (benzene compounds
DOI：
10.1002/chin.200340064
被引量：
年份：
2003
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