莰烯醛及二氢莰烯醛的环状缩醛的合成与结构分析

THE SYNTHESIS AND STRUCTURAL ANALYSIS OF CYCLIC ACETAL OF w-FORMYLCAMPHENE AND DIHYDRO-w-FORMYLCAMPHENE

通过从莰烯合成的莰烯醛及二氢莰烯醛分别与乙二醇、１，２－丙二醇、１．３－丙二醇、乙二硫醇反应合成了７种环状缩醛，并对各反应原料在缩醛化反应小的反应活性进行了比较。产品经纯化后进行了质谱、红外光谱和核磁共振谱等结构分析。合成缩醛的方法可用于两种醛的保护和贮存。

cyclic acetal compounds were synthesised by reactions of w-formylcamphene and dihydro-w-formylcamphene with any-one of ethyleneglycol,1,2-propandiol,1,3-propandiol or 1,2-ethandithiol respec-tively. After being purified,the produets were identified by MS,IR,￣1H NMR. Comparisons of activity oftwo kinds of aldehydes and diatomic alcobols in acetalation were also made. These methods are useful in pro-tecting and stoting w-formylcamphene and dihydro-w-formylcamphene.