HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1612636Generated: November 2, 2026
Thionyl Chloride → 1,2,3-Benzothiadiazole-7-carbonyl chloride
https://huagongshe.com/reaction/1612636
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Thionyl Chloride | HCID 24386 | — |
| Reactant | 1,2,3-Benzothiadiazole-7-carboxylic acid | HCID 10921109 | — |
| Product | 1,2,3-Benzothiadiazole-7-carbonyl chloride | HCID 18377607 | — |
Reaction Steps
12.54 g (0.070 mol) of benzo-1,2,3-thiadiazole-7-carboxylic acid are mixed with 80 ml of thionyl chloride. The mixture is heated and maintained at a bath temperature of 90° C. for 8 hours. The excess thionyl chloride is then removed by distillation in a rotary evaporator at a bath temperature of 40° C. The resulting oil solidifies; m.p. 107° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05190928 |
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| Source dataset | uspto-grants-1993_03 |
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| ORD ID | ord-d3e844828ecc469b85adf972404ca3a0 |
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| Source note | uspto-grants-1993_03 |
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