Maleic Anhydride → HCID 14473346, compound

Participants

Reaction Steps

Maleic anhydride (85 g) of 1300 mL of CH2Cl2 was cooled to 15° C. and treated with 155 g of 4-aminobutyraldehyde diethyl acetal (AmBDA). (Other preparations used the reverse mode of addition with similar results.) Fifteen min after the addition was complete no further AmBDA was detected by glpc. The solvent was removed under reduced pressure (maintained at 0.2 torr for 2 h to assure completion) to give 230 g of slightly orange colored thick oil. On standing for several months at 0° C., this material solidified to an off-white solid.

Provenance & Evidence