Ethyl 2-butynoate → HCID 67214802, compound

Participants

Reaction Steps

As described for example 69a, N-hydroxy-thiophene-3-carboximidoyl chloride (Organic Letters, 8(17), 3679-3680, 2006, 11.4 g, 69.6 mmol) instead of N-hydroxybenzenecarboximidoyl chloride using ethyl 2-butynoate instead of cyclopropyl-propynoic acid ethyl ester was converted to the title compound (15.0 g, 91%) which was obtained as a dark brown liquid. MS: m/e=238.0 [M+H]+.

Provenance & Evidence