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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 543710Generated: October 28, 2026

Bromine → HCID 13247732, compound

https://huagongshe.com/reaction/543710

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantHCID 13247708HCID 13247708—
SolventAcetic AcidHCID 176—
ProductHCID 13247732HCID 1324773277.7%

Reaction Conditions

Temperature60 °C

Reaction Steps

A solution of bromine (1.12 g) in glacial acetic acid (2 ml) was added dropwise at 60° C. with stirring to a solution of 1-methyl-4-piperidyl 1,2-benzisoxazole-3-acetate hydrobromide (2.0 g) in glacial acetic acid (8 ml). The reaction mixture was stirred for 3 hours at 60° C. and then concentrated in vacuo to about a half volume. The residue was dissolved in acetone and thereto was added diethyl ether until it became turbid. After cooling, the resulting crystals were collected by filtration to give 1-methyl-4-piperidyl 2-bromo-2-(1,2-benzisoxazol-3-yl)acetate hydrobromide (1.9 g). An analytical sample was obtained by recrystallization from ethanol, m.p. 169°-171° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04447439
Source datasetuspto-grants-1984_05
ORD IDord-083d4c8224504a9fb51c6068e9ad7c1e
Source noteuspto-grants-1984_05