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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1066094Generated: November 3, 2026

Phosgene → HCID 178422564, compound

https://huagongshe.com/reaction/1066094

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosgeneHCID 6371—
ReactantIsopropyl IsothiocyanateHCID 75263—
Reactant2-Amino-4-methylbenzenesulfonamideHCID 11436538—
ReactantN-(2-amino-4-methylbenzenesulfonyl)-N'-isopropylthioureaHCID 21197735—
ProductHCID 178422564HCID 178422564—

Reaction Steps

Starting from 2-amino-4-methylbenzenesulfonamide and isopropyl isothiocyanate, and following a procedure analogous to the one described in Example 4a, N-(2-amino-4-methylbenzenesulfonyl)-N′-isopropylthiourea was prepared, m.p. 137-139° C. Subsequent ring closure with phosgene by a procedure analogous to the one described in Example 4b gave the title compound; m.p. 309-311° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06242443B1
Source datasetuspto-grants-2001_06
ORD IDord-82cd63e0e3be427a8df034328d6160d7
Source noteuspto-grants-2001_06