When adding dianion 5 to aldehyde 4 and using the molar ratios of entry 1, the yield of aldol 3 dropped from 98% to 86%, and 7% of alcohol 7 was formed.

• 当加入醛酸根5比4；用摩尔进入一日产量3醛从98%25下降到86%25；而77%25的酒精组成.