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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508390Generated: November 2, 2026

Benzenecarbothioic acid, 2,5-difluoro-, hydrazide → HCID 68507256, compound

https://huagongshe.com/reaction/1508390

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenecarbothioic acid, 2,5-difluoro-, hydrazideHCID 55279024—
ReactantHCID 68503911HCID 68503911—
SolventDichloromethane ethanolHCID 21584144—
ProductHCID 68507256HCID 6850725687%

Reaction Steps

To a solution of tert-butyl 4-(3-(tert-butyldimethylsilyloxy)phenyl)-4-oxobutylcarbamate (1.400 g, 3.55 mmol) in 20 mL of a 3:1 EtOH/DCM mixture was added 2,5-difluorobenzothiohydrazide (0.704 g, 3.74 mmol). The reaction was stirred overnight at room temperature, then heated to 45° C. for 10 hours. The reaction mixture was then concentrated in vacuo, loaded directly to Biotage (45), followed by flash column chromatography (20-50% ethyl acetate/hexanes), yielding the desired product as a yellow semi-solid (1.742 g, 82%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221841B2
Source datasetuspto-grants-2015_12
ORD IDord-a1c0ab6257c94b1bb85ba790f49cee13
Source noteuspto-grants-2015_12