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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1808734Generated: October 26, 2026

Benzene → 1-Methyl-1-phenyl-ethylisocyanate

https://huagongshe.com/reaction/1808734

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantPhosgeneHCID 6371—
ReactantTriethylamineHCID 8471—
ReactantCumylamineHCID 68509—
SolventTolueneHCID 1140—
SolventDiethyl EtherHCID 3283—
Product1-Methyl-1-phenyl-ethylisocyanateHCID 2769430—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a benzene (2 mL) solution of cumylamine (1.80 g, 13.3 mmol) and triethylamine (1.86 mL, 13.3 mmol) was added a 20% toluene solution of phosgene (17.5 mL, 33.3 mmol) dropwise. After completion, the reaction mixture was heated to 60° C. for 2 hours. It was then cooled to room temperature, charged with diethyl ether (20 mL), and filtered. Concentration of the filtrate in vacuo afforded the title compound. This crude product was used in the subsequent step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08361994B2
Source datasetuspto-grants-2013_01
ORD IDord-fe3dccab2b714d998f38ddba15056b2c
Source noteuspto-grants-2013_01