141743-48-8

Basic information

• Product Name: Benzene, 1-(2,2-dibromoethenyl)-4-propyl-
• CAS NO: 141743-48-8
• Molecular Formula: C11H12Br2
• Molecular Weight: 304.024
• Mol File: 141743-48-8.mol

Chemical Properties

• CAS DataBase Reference: Benzene, 1-(2,2-dibromoethenyl)-4-propyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(2,2-dibromoethenyl)-4-propyl-(141743-48-8)
• EPA Substance Registry System: Benzene, 1-(2,2-dibromoethenyl)-4-propyl-(141743-48-8)

Safety Data

• Hazardous Substances Data: 141743-48-8(Hazardous Substances Data)

Upstream product

• 558-13-4 carbon tetrabromide 
• 28785-06-0 4-n-propylbenzaldehyde 

Downstream Products

• 284044-51-5 4-n-Propylphenyl-1-bromoacetylene 
• 62452-73-7 1-ethynyl-4-propylbenzene 

Relevant articles and documents

Nickel(ii)-catalyzed tandem C(sp2)-H bond activation and annulation of arenes with gem-dibromoalkenes

A nickel(ii)/silver(i)-catalyzed tandem C(sp2)-H activation and intramolecular annulation of arenes with dibromoalkenes has been successfully achieved, which offers an efficient approach to the 3-methyleneisoindolin-1-one scaffold. Attractive features of this system include its low cost, ease of operation, and its ability to access a wide range of isoindolinones.

Synthesis and Physical Properties of Asymmetric Diphenyldiacetylenic Liquid Crystals

Fifty-six asymmetric diphenyl-diacetylene liquid crystal homologs including dialkyl, alkyl-alkoxy, cyano-alkyl, chloro-alkyl, fluoro-alkyl, difluoro-alkyl, lateral chloro-substituted fluoro-alkyl (or alkoxy), lateral fluoro-substituted asymmetric dialkyl, and vinyl-alkyl are synthesized and their physical properties evaluated.Among these asymmetric diphenyl-diacetylene liquid crystals, many dialkyl homologs exhibit low melting point, wide nematic range, and low heat of fusion.They are ideal host candidates for formulating eutectic mixtures.The polar groups make important contributions to the phase transition temperature, dielectric anisotropy, refractive indices and viscosity.Detailed effects depend on the position of the substitution.These new liquid-crystals compounds and mixtures are particularly useful for electro-optic modulation of infrared radiation. - Keywords: Diphenyl-diacetylenes, eutectic mixtures, electro-optic modulation, physical properties

Tolan derivatives, liquid crystal compositions including same, liquid crystal display devices including the compositions and method of preparation

A tolan derivative suitable for use in a liquid crystal composition represented by the general formula: STR1 wherein R is a straight chain alkyl group having from 1 to 10 carbon atoms, A is either STR2 or a single bond, and X is hydrogen or fluorine.