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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2425532Generated: October 31, 2026

Water → HCID 67244725, compound

https://huagongshe.com/reaction/2425532

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzyl(methoxymethyl)((trimethylsilyl)methyl)amineHCID 353442—
ReactantPhenol, 2-[(1E)-2-(2-bromophenyl)ethenyl]-4-chloro-, 1-acetateHCID 44139027—
CatalystTrifluoroacetic acidHCID 6422—
SolventTolueneHCID 1140—
ProductHCID 67244725HCID 67244725—

Reaction Steps

N-benzyl-N-methoxymethyl-N-(trimethylsilylmethyl)amine (5.0 g, 21.06 mmol) was added dropwise with a syringe over 30 minutes to a suspension of (E)-2-(2-bromostyryl)-4-chlorophenyl acetate (Example 1; 7.0 g, 19.9 mmol) in toluene (25 ml) containing trifluoroacetic acid (3 drops) while stirring at room temperature. After additional stirring for one hour water (10 ml) was added. The toluene layer was separated. The aqueous layer was extracted with toluene (25 ml). The combined organic layers were dried with Na2SO4 and evaporated under vacuum to give the crude cycloadduct as a clear and colorless oil, 10.76 g (>100%) in quantitative yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07964739B2
Source datasetuspto-grants-2011_06
ORD IDord-e6441431342a4e2ab9d9546a6e317f4d
Source noteuspto-grants-2011_06