Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2083460Generated: November 1, 2026

Water → 2-Cyclopentyl-2-methyl-5-methoxy-6,7-dichloro-1-indanone

https://huagongshe.com/reaction/2083460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBromocyclopentaneHCID 8728—
Reactant2-Methyl-5-methoxy-6,7-dichloro-1-indanoneHCID 12395561—
ReactantPotassium tert-butoxideHCID 23665647—
Solventtert-ButanolHCID 6386—
Product2-Cyclopentyl-2-methyl-5-methoxy-6,7-dichloro-1-indanoneHCID 12395568—

Reaction Steps

A solution of 2-methyl-5-methoxy-6,7-dichloro-1-indanone (7.35 g., 0.03 mole) in tert.-butyl alcohol (100 ml.) is refluxed in an inert atmosphere and treated with potassium tert.-butoxide (4.48 G., 0.04 mole). After one-half hour at reflux cyclopentyl bromide (9.9 g., 0.06 mole) is added and refluxing is continued for 1 hour. The reaction is poured into water (1 l.) affording 2-cyclopentyl-2-methyl-5-methoxy-6,7-dichloro-1-indanone which melts at 109°-111° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04085219
Source datasetuspto-grants-1978_04
ORD IDord-66b0ca0719ee489e81dd0729b183377b
Source noteuspto-grants-1978_04