论文部分内容阅读
四氧化锇转换烯烃为邻二醇是熟知的反应,文献也有报道链状的烯丙醇被四氧化锇氧化为相应的三醇化合物。本文报道,当环烯丙醇被四氧化锇氧化时。则随烯烃空间障碍的不同而结果不同。空间隙碍比较大的环烯丙醇得到羟基被氧化的α、β不饱和羰基化合物;空间障碍小的则主要产物为相应的三醇化合物;而具有中等程度空间障碍的环烯丙醇得到二类竞争性反应产物,即相应的三醇化合物和α、β不饱和羰基化合物。
The conversion of osmium tetroxide to vicinal diols is a well-known reaction and it has also been reported in the literature that the chain-like allyl alcohol is oxidized by osmium tetroxide to the corresponding triol compound. This paper reports that when allyl alcohol is oxidized by osmium tetroxide. The difference will be different with the space disorder of alkene. Cyclic allyl alcohol, which has larger space gap, can get α, β-unsaturated carbonyl compounds whose hydroxyl groups are oxidized; while the small space obstacle is the main product, the corresponding triol compounds; while the cycloalcohol with moderate space obstacle has two Competitive reaction products, namely the corresponding triol compounds and α, β-unsaturated carbonyl compounds.