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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 254572Generated: October 30, 2026

Carbon tetrabromide → 2-(2,2-Dibromo-vinyl)-3-ethyl-1,4-difluoro-benzene

https://huagongshe.com/reaction/254572

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
Reactant2-Ethyl-3,6-difluoro-benzaldehydeHCID 58951902—
Product2-(2,2-Dibromo-vinyl)-3-ethyl-1,4-difluoro-benzeneHCID 58951856—

Reaction Steps

2-(2,2-Dibromo-vinyl)-3-ethyl-1,4-difluoro-benzene was prepared from 2-ethyl-3,6-difluoro-benzaldehyde, carbon tetrabromide and triphenylphosphine in analogy to Example 1d): colourless oil; 1H-NMR (CDCl3): 1.15 (3H, t, CH3), 2.60 (2H, qd, CH2), 6.89 (1H, ddd, ArH), 7.00 (1H, ddd, ArH), 7.26 (1H, s, CH═CBr2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07875645B2
Source datasetuspto-grants-2011_01
ORD IDord-aaa232f7c2ce40c08157f71461ebb2ae
Source noteuspto-grants-2011_01