The general utility of this procedure was further demonstrated by using several olefin substituents (2a-2o). The simple olefin 2a with methyl ester ylide 3a was gives major product 4a as 1S, 2S, confirmed by ORTEP and minor product 4b. Repeated the same reaction with ethyl ester ylide (3b) gives as similar diastereomers ratio. This time the minor product 5b forms crystals, by ORTEP confirmed the product as 1R, 2R. Treatment of Nacryoylbornane [10, 2]sultam (2l) under the same reaction conditions resulted in the desired diastereomeric products in a ratio of 1:1 with low chemical yield 40% (in toluene)