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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 378549Generated: October 29, 2026

Methanesulfonate → 1'-[4-(2-chloro-5-trifluoromethylbenzoyl)-1-butyl]-spiro[isobenzofuran-1(3H),4'-piperidine]

https://huagongshe.com/reaction/378549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonateHCID 85257—
Reactant3H-spiro[2-benzofuran-1,4'-piperidine]HCID 10442498—
Reactant4-(2-Chloro-5-trifluoromethylbenzoyl)-1-butanolHCID 22012164—
Product1'-[4-(2-chloro-5-trifluoromethylbenzoyl)-1-butyl]-spiro[isobenzofuran-1(3H),4'-piperidine]HCID 22012217—

Reaction Steps

4-(2-Chloro-5-trifluoromethylbenzoyl)-1-butanol, prepared as described in EXAMPLE 17, was converted to the corresponding methanesulfonate by the method described in EXAMPLE 2. Treatment with spiro[isobenzofuran-1(3H),4'-piperidine] according to the method described in EXAMPLE 2 gave 1'-[4-(2-chloro-5-trifluoromethylbenzoyl)-1-butyl]-spiro[isobenzofuran-1(3H),4'-piperidine]. Conversion to the corresponding hydrazone and ring closure according to the method described in EXAMPLE 17 gave the title compound, 18, mp: 146-47° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06031099
Source datasetuspto-grants-2000_02
ORD IDord-5464a6d395c04792828a26c8b6dfa6e8
Source noteuspto-grants-2000_02