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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1665313Generated: October 30, 2026

5-chloro-1,3-dimethyl-1H-pyrazole-4-sulfonyl chloride → HCID 57661868, compound

https://huagongshe.com/reaction/1665313

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-chloro-1,3-dimethyl-1H-pyrazole-4-sulfonyl chlorideHCID 2777126—
ReactantSpiro[naphtho[1,2-b][1,4]oxathiine-2,4'-piperidine]-5,6-dioneHCID 57661820—
ProductHCID 57661868HCID 57661868—

Reaction Steps

Compound 81 was synthesized using spiro[naphtho[1,2-b][1,4]oxathiine-2,4′-piperidine]-5,6-dione, 5-chloro-1,3-dimethyl-1H-pyrazole-4-sulfonyl chloride and conditions outlined in procedure P. M.p.=247-249° C.; 400 MHz 1H NMR (DMSO-d6) δ: 7.89-7.86 (m, 1H), 7.66-7.61 (m, 1H), 7.57-7.52 (m, 1H), 7.41-7.38 (m, 1H), 3.80 (s, 3H), 3.56-3.51 (m, 2H), 3.11 (s, 2H), 2.88-2.81 (m, 2H), 2.29 (s, 3H), 2.13-2.06 (m, 2H), 1.93-1.84 (m, 2H); LCMS: 494 [M+H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08039503B2
Source datasetuspto-grants-2011_10
ORD IDord-772aeac7f8f94c6b9bb891940b16c8ab
Source noteuspto-grants-2011_10