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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1275915Generated: October 29, 2026

Tetraethyltin → 2-ethyl-10,11-dihydro-5H-dibenzo [a,d]cyclohepten-5-one

https://huagongshe.com/reaction/1275915

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetraethyltinHCID 11704—
Reactant2-Bromo-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-oneHCID 19261781—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
Product2-ethyl-10,11-dihydro-5H-dibenzo [a,d]cyclohepten-5-oneHCID 22117289—

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of the product from step (iv) (1.52 g), tetraethyl tin (10.4 ml) and tetrakis(triphenylphosphine)palladium(0) (100 mg) in dimethylformamide (20 ml) was heated at 130° C. for 48 hours. The mixture was evaporated and the residue purified by chromatography eluting with isohexane then 50% toluene in isohexane then toluene. Yield 0.88 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06162808
Source datasetuspto-grants-2000_12
ORD IDord-fef0f6e46a054941975ac4b93e1e766f
Source noteuspto-grants-2000_12