反应详情

A 10 ml flask was charged with isobutyraldehyde (4.46 mmol), sodium trichloroacetate (4.9 mmol) and N,N-dimethylformamide (2 ml). After 2 minutes' mixing and standing for one hour the flask contained a thick slurry, which was poured out into water-free diethyl ether (100 ml). After decanting the solution the solid material was separated by centrifugation and the separated solid material was dried for 1 hour at 40° C. and 80 Pa. The dried material consisted of the title carbonate and showed the following infrared absorptions (2.5 mg carbonate in 300 mg potassium bromide): medium 2880 cm-1 ; very strong 1715 cm-1, very strong 1465 cm-1 ; strong 1310 cm-1 ; strong 1080 cm-1, medium 970 cm-1 ; strong 840 cm-1 and strong 780 cm-1.

1. additionAfter 2 minutes' mixing
2. customAfter decanting the solution the solid material
3. customwas separated by centrifugation
4. customthe separated solid material was dried for 1 hour at 40° C.