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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 925644Generated: October 29, 2026

Phenylboronic Acid → 8-Fluoro-6-phenyl-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-one

https://huagongshe.com/reaction/925644

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenylboronic AcidHCID 66827—
Reactant6-Bromo-8-fluoro-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-oneHCID 90036902—
Product8-Fluoro-6-phenyl-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-oneHCID 73334733—

Reaction Steps

The title compound, grey solid (52 mg, 74%), MS (ISP) m/z=281.3 [(M+H)+], mp 236.5° C., was prepared in accordance with the general method of example 1 from 6-bromo-8-fluoro-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-one (intermediate 1) (70.8 mg, 0.25 mmol) and commercially available phenylboronic acid (39.6 mg, 0.325 mmol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09284321B2
Source datasetuspto-grants-2016_03
ORD IDord-c3f7339ff66c40bfb71ecd2b1ed22c8b
Source noteuspto-grants-2016_03