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| α-OXOKETENE CYCLIC DITHIOACETAL CHEMISTRY(XⅢ)-THE ETHERIFYING REACTION ON THE ADDUCTS OF ALIPHATIC α-OXO KETENE CYCLIC DITHIOACETALS WITH ALLYL MAGNESIUM BROMIDE | |
| 摘 要： | Aliphatic α-oxo ketene cyclic dithioacetals 1 were reacted with allyl magne-sium bromide to afford the 1,2-addition products 2.Catalyzed by boron trifluorideetherate,the adducts 2 were etherified by methanol to afford the corresponding methylethers 3.This process provides a new method for the protection of the acid sensitivehydroxyl group in 2 under mild condition. |
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