2-Vinyloxazoline-4,5-dione hydrochloride → 3-Chloropropanoyl isocyanate

Participants

Reaction Steps

To 2-vinyloxazoline-4,5-dione hydrochloride (100 g), o-dichlorobenzene (400 g) was added, and the resultant mixture was heated at 110° to 120° C. while stirring for about 30 minutes. After cooling with ice, the reaction mixture was distilled under reduced pressure to give acryloyl isocyanate (8.9 g; b.p., 82° to 83° C./760 mmHg) and betachloropropionyl isocyanate (56.4 g).

Provenance & Evidence