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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545727Generated: November 1, 2026

Sesamol → ethyl [4-bromo-3-hydroxy-3-(6-hydroxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-2-oxo-2,3-dihydro-1H-indol-1-yl]acetate

https://huagongshe.com/reaction/545727

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSesamolHCID 68289—
Reactant2,2-Dimethyl-2,3-dihydrobenzofuran-6-olHCID 20037293—
Reactantethyl (4-bromo-2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetateHCID 28492473—
Reactant1-(2-cyclopropylethyl)-1H-indole-2,3-dioneHCID 65596570—
Productethyl [4-bromo-3-hydroxy-3-(6-hydroxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-2-oxo-2,3-dihydro-1H-indol-1-yl]acetateHCID 58872452—

Reaction Steps

Following the procedure as described in PREPARATION 2B, and making non-critical variations to replace 1-(2-cyclopropylethyl)-1H-indole-2,3-dione with ethyl (4-bromo-2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetate and 1,3-benzodioxol-5-ol with 2,2-dimethyl-2,3-dihydrobenzofuran-6-ol, the title compound was obtained: MS (ES+) m/z 498.5 (M+23), 500.5 (M+23).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935721B2
Source datasetuspto-grants-2011_05
ORD IDord-a607bb7e59a4457c84b473c77a586885
Source noteuspto-grants-2011_05