Phenyl isocyanate → HCID 54512104, compound

Participants

Reaction Steps

Phenyl isocyanate (9.5 g, 80 mmol) is added over 5 minutes to a suspension of 20.0 g (39 mmol) of di-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate in 125 ml of dichloromethane. The resulting solution is refluxed for 30 minutes and then evaporated to obtain a solid. The crude solid is briefly refluxed in methanol, filtered off, and recrystallized from 2-propanol: dichloromethane to give 22.2g (76% yield) of white solid, m.p. 159-61° C.(dec).

Provenance & Evidence