HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 745888Generated: October 26, 2026
Oxalyl chloride → Benzoic acid, 2-(isocyanatosulfonyl)-, ethyl ester
https://huagongshe.com/reaction/745888
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Oxalyl chloride | HCID 65578 | — |
| Reactant | Ethyl 2-(Aminosulfonyl)benzoate | HCID 4652880 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | Benzoic acid, 2-(isocyanatosulfonyl)-, ethyl ester | HCID 13386652 | — |
Reaction Steps
At 85° C., 68.76 g (0.3 mol) 2-sulfamylbenzoic acid ethylester are added to 57.9 g (0.45 mol) oxalylchloride and 0.4 g diazadicyclo(2,2,2,)octane in 500 ml absolute toluene. The reaction mixture is heated yet three hours to an interior temperature of 95° C., until no gas development is observed.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04601746 |
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| Source dataset | uspto-grants-1986_07 |
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| ORD ID | ord-1de7c85a6b5747ecb71b7b71e00fb91a |
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| Source note | uspto-grants-1986_07 |
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