Chlorosulfonyl isocyanate → HCID 20240770, compound

Participants

Reaction Steps

A solution of 1.8 g of methyl 2-(aminosulfonyl)-4-phenoxybenzoate (prepared by methods analogous to the sulfonamide of Example 5) in 15 mL chlorobenzene was treated with 0.55 mL of chlorosulfonyl isocyanate at room temperature, then heated to 100° for ca. 2 hours. The dark mixture was then cooled, decanted from some tarry residue and evaporated under reduced pressure. The title compound was indicated by the presence of a band at 2240 cm-1 in the infrared spectrum (neat liquid). It was used without further purification.

Provenance & Evidence