N-Hydroxysuccinimide → 843666-31-9

Participants

Reaction Conditions

Reaction Steps

1,18-octadecanedioic acid mono benzyl ester (120 g, 0.3 mol), N-hydroxysuccinimide (41 g, 0.36 mol) and N,N-dicyclohexylcarbodiimide (74 g, 0.36 mol) were dissolved in NMP (1200 ml) and heated to 60° C. for 2.5 hr. The reaction mixture was cooled to 25° C. and the precipitate was removed by filtration and washed with water (4.7 L). The crude precipitate was recystallised from 2-propanol (1250 ml), affording benzyl 18-[(2,5-dioxo-1-pyrrolidinyl)oxy]-18-oxooctadecanoate. Yield 138 g (92%).

Provenance & Evidence