In accordance with the conditions provided by literature, the yield of the experiment done by us was only 31-33%. It's probably because of the difficulty of cleavage of ether bond.
根据文献所提供的条件进行了实验，所得收率仅31-33％，分析原因为醚键断裂比较困难。
As an effective protection for hydroxy group in alcohols and phenols, the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.
从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
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