Palladium(II)-catalyzed cyclization of optically active urethanes containing an allylic alcohol moiety was examined. Efficient 1,4-asymmetricinduction was found in this reaction. The cycloadducts were converted to pseudoconhydrine.
研究了钯 (II) 催化的含有烯丙醇部分的旋光氨基甲酸酯的环化反应。在该反应中发现了有效的 1,4-不对称诱导。环加合物被转化为假conhydrine。