Ring cleavage reaction based on crossed aldolcondensation of carbobicyclic ketones with benzaldehyde under acetalization conditions (BF3·Et2O/ethylene glycol) was studied. By using optically active 1,2-diols instead of ethylene glycol, an asymmetric version of this reaction could be developed for the first time.
研究了在缩醛化条件下(BF 3 ·Et 2 O /乙二醇)基于碳双环酮与苯甲醛的交叉羟醛缩合反应的开环反应。通过使用旋光的1,2-二醇代替乙二醇,可以首次开发出该反应的不对称形式。