Boron tribromide → 2-Bromo-5-(2-phenylethenyl)-1,3-benzenediol

Participants

Role	Name	HCID	Charge
Reactant	Boron tribromide	HCID 25134	—
Reactant	2-Bromo-1,3-dimethoxy-5-(2-phenylethenyl)benzene	HCID 66842676	—
Product	2-Bromo-5-(2-phenylethenyl)-1,3-benzenediol	HCID 66843045	90%

Reaction Steps

This material was synthesized from 1-(4-bromo-3,5-dimethoxyphenyl)-2-phenylethene (21B) and BBr3 in 90% yield by the same method as described in Example 6. 1HNMR (CDCl3, ppm): δ 5.39 (s, 2H), 6.81 (s, 2H), 7.06 (d, J=17 Hz, 1H), 7.11 (d, J=17 Hz, 1H), 7.28 (m, 1H), 7.37 (m, 2H), 7.55 (m, 2H).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07868047B2
Source dataset	uspto-grants-2011_01
ORD ID	ord-4e5e6bf95722456b84c844fe93b76572
Source note	uspto-grants-2011_01