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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1976459Generated: October 30, 2026

4-But-2-ynyloxy-benzenesulfonyl chloride → HCID 22645020, compound

https://huagongshe.com/reaction/1976459

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-But-2-ynyloxy-benzenesulfonyl chlorideHCID 11195928—
ReactantHCID 22645037HCID 22645037—
ProductHCID 22645020HCID 2264502070%

Reaction Steps

In the same manner as described in Step 2 of Example 215, ethyl 4-[(4-fluoroanilino)carbonyl]-2-piperazinecarboxylate (0.41 g, 1.4 mmol) and 4-but-2-ynyloxy-benzenesulfonyl chloride provided 0.49 g (70%) of ethyl 1-{[4-(2-butynyloxy)phenyl]sulfonyl}-4-[(4fluoroanilino)carbonyl]-2-piperazinecarboxylate as a white powder. Electrospray Mass Spec 504.4 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06225311B1
Source datasetuspto-grants-2001_05
ORD IDord-b423d40b3e1840b8a7afd55260fae191
Source noteuspto-grants-2001_05