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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 491754Generated: October 26, 2026

2-Methylbenzenesulfonic acid hydrate → 7-Bromo-5-methoxy-2-(4-methoxy-3-(trifluoromethyl)phenyl]-1,3-benzoxazole

https://huagongshe.com/reaction/491754

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methylbenzenesulfonic acid hydrateHCID 12496995—
Reactant2-Bromo-4-methoxy-6-{[4-methoxy-3-(trifluoromethyl)benzoyl]amino}phenyl 4-methoxy-3-(trifluoromethyl)benzoateHCID 22669162—
Product7-Bromo-5-methoxy-2-(4-methoxy-3-(trifluoromethyl)phenyl]-1,3-benzoxazoleHCID 21907373—

Reaction Steps

The title compound was prepared in substantially the same manner as described in Example 20, Step d (Route a), from 2-bromo-4-methoxy-6-{[4-methoxy-3-(trifluoromethyl)benzoyl]amino}phenyl 4-methoxy-3-(trifluoromethyl)benzoate and p toluenesulfonic acid monohydrate. The product was obtained as an off-white solid, m.p. 183-185° C.; MS m/e 402 (M+H)4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07531564B2
Source datasetuspto-grants-2009_05
ORD IDord-91b789c29e88442faabaecf60c6e2023
Source noteuspto-grants-2009_05