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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 434102Generated: October 30, 2026

1-Butanol, 4-bromo-, 1-acetate → 3-butoxy-4-hydroxy-8-(4-acetoxybutoxy)-2H-1-benzopyran-2-one

https://huagongshe.com/reaction/434102

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Butanol, 4-bromo-, 1-acetateHCID 78491—
ReactantHCID 54697050HCID 54697050—
Product3-butoxy-4-hydroxy-8-(4-acetoxybutoxy)-2H-1-benzopyran-2-oneHCID 54696811—

Reaction Steps

In the same manner as in Reference Example 1, except that an equimolar amount of 3-butoxy-4,8-dihydroxy-2H-1-benzopyran-2-one was used in place of 3-ethoxy-4,5-dihydroxy-2H-1-benzopyran-2-one, and 4-bromobutyl acetate was used in place of 2-bromoethyl acetate in Reference Example 1, 3-butoxy-4-hydroxy-8-(4-acetoxybutoxy)-2H-1-benzopyran-2-one was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06670391B2
Source datasetuspto-grants-2003_12
ORD IDord-5a79f2a234744fd1907207e5af0059cf
Source noteuspto-grants-2003_12