反应详情

The compound was prepared according to the procedure described in Example 84 except that the reaction was worked up after 30 hours. The following reagents were used: 3,3-dimethoxybenzophenone (48.5 g), diisopropylamine (64.4 mL). 1.55M n-butyl lithium in hexane (286 mL), acetaldehyde N-tertbutylimine (29.5 mL), diethyl chlorophosphonate (33.2 mL) and tetrahydrofurane (400 mL). The work up varied only in that the oxalic acid catalyzed hydrolysis was done at 85° C. over two hours, furnished 53 g of essentially pure 3,3-bis(3-methoxyphenyl)-2-propenal as a pale yellow oil.

1. customThe compound was prepared
2. customhydrolysis
3. waitwas done at 85° C. over two hours