Reaction of Epoxide 3. Using the general procedure with an epoxide/ylide 1:2 molar ratio, the reaction time was 22 h; products 10 and 11 were isolated by using a mixture of hexane and ether (8:2) as eluent. 10 and 11 were obtained with yields of 22% and 22%, respectively; no starting material was recovered and other products were not identified.Product 10 is a colorless viscous oil (bp 180 °C (0.7 mmHg)):[a]D +26.0°(c 0.50); IR i-mal 1735, 1720 (C=0 ,/3-unsaturated
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