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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 842328Generated: October 27, 2026

1,4-dihydro-3H-2-benzopyran-3-one → (2-Hydroxymethylphenyl)acetonitrile

https://huagongshe.com/reaction/842328

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-dihydro-3H-2-benzopyran-3-oneHCID 78092—
Reactant2-(Cyanomethyl)benzyl chlorideHCID 11298159—
Product(2-Hydroxymethylphenyl)acetonitrileHCID 5823351.6%

Reaction Steps

After completion of the reaction, the concentration of 3-isochromanone was analyzed by GC analysis and then the yield of 3-isochromanone was calculated. As a result, the yield was found to be 95% based on α-chloro-α′-cyano-o-xylene. At this time, the conversion ratio of α-chloro-α′-cyano-o-xylene was 100% and the by-product compound (α-hydroxy-α′-cyano-o-xylene) where the halogen moiety was hydrolyzed was produced in a yield of 1.6%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06372921B1
Source datasetuspto-grants-2002_04
ORD IDord-c863c88ef68940f4a2f54393860c9c46
Source noteuspto-grants-2002_04