2-(4-BROMOPHENYL)-1,1-DIPHENYLETHYLENE Chemical Properties

Melting point:

79 °C

Boiling point:

404.4±14.0 °C(Predicted)

Density 

1.313±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

solubility 

soluble in Toluene

form 

powder to crystal

color 

White to Almost white

InChI

InChI=1S/C20H15Br/c21-19-13-11-16(12-14-19)15-20(17-7-3-1-4-8-17)18-9-5-2-6-10-18/h1-15H

InChIKey

HUCFDUOIMSRYAA-UHFFFAOYSA-N

SMILES

C1(Br)=CC=C(/C=C(/C2=CC=CC=C2)\C2=CC=CC=C2)C=C1

Safety Information

HS Code 

2903.99.8001

2-(4-BROMOPHENYL)-1,1-DIPHENYLETHYLENE Usage And Synthesis

Synthesis

General procedure for the synthesis of 2-(4-bromophenyl)-1,1-diphenylethylene from benzophenone and p-bromobenzyl bromide: 40.00 g of p-bromobenzyl bromide (0.16 mol) and 83.6 mL of triethyl phosphite (0.48 mol) were added to a 500 mL three-necked flask, and the reaction was heated under argon protection in an oil bath at 150 °C for 24 h with magnetic stirring, and then the reaction was The reaction was cooled to room temperature to obtain the Yerid reagent. To another three-necked flask was added 450 mL of tetrahydrofuran (THF) followed by 21.87 g of benzophenone (0.12 mol) and 40.39 g of potassium tert-butanolate (t-BuOK, 0.36 mol). The mixture was stirred for 24 hours. Upon termination of the reaction, the reaction solution was poured into water, which produced a large white precipitate, which was collected by diafiltration. The precipitate was washed three times with ethanol and dried under vacuum at 60 °C for 24 h to give the white intermediate Tri-Br.

References

[1] Patent: CN104341311, 2016, B. Location in patent: Paragraph 0028; 0029; 0030
[2] Chinese Journal of Chemistry, 2015, vol. 33, # 8, p. 939 - 947

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