HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 482869Generated: October 30, 2026
HCID 20244053, compound → HCID 20244060, compound
https://huagongshe.com/reaction/482869
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | HCID 20244053 | HCID 20244053 | — |
| Solvent | 1,1'-Biphenyl, mixt. with 1,1'-oxybis(benzene) | HCID 24670 | — |
| Product | HCID 20244060 | HCID 20244060 | 68.2% |
Reaction Steps
A mixture of 6 g of 1-oxo-pyrido[2,1-C][1,4]benzothiazine-3,4-dicarboxylic acid in 60 ml Dow-Therm-A was stirred at 230° C. for 1 hr. (until no more gas was evolved). It was then allowed to cool, filtered, and the precipitate washed with ether giving 4.1 g crude product which was crystallized from 1N NaOH and 1N HCl to give 3.5 g product, m.p. 222° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04576942 |
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| Source dataset | uspto-grants-1986_03 |
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| ORD ID | ord-a299d9e9efab4f85b8569db717ec0345 |
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| Source note | uspto-grants-1986_03 |
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