51752-40-0

Basic information

• Product Name: Benzene, 1,1'-(2,4-dibromo-1-butenylidene)bis-
• CAS NO: 51752-40-0
• Molecular Formula: C16H14Br2
• Molecular Weight: 366.095
• Mol File: 51752-40-0.mol

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-(2,4-dibromo-1-butenylidene)bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(2,4-dibromo-1-butenylidene)bis-(51752-40-0)
• EPA Substance Registry System: Benzene, 1,1'-(2,4-dibromo-1-butenylidene)bis-(51752-40-0)

Safety Data

• Hazardous Substances Data: 51752-40-0(Hazardous Substances Data)

Upstream product

• 7632-57-7 diphenylmethylenecyclopropene 

Downstream Products

• 51752-41-1 1,1-Diphenyl-2-bromo-1,3-butadien 

Relevant articles and documents

Acetoxylation and hydroxylation of diarylmethylenecycloalkanes via radical approach

Diarylmethylenecycloalkanes were acetoxylated under the radical reaction conditions with PhI(OAc)2, I2, and TsNH2. Moreover, upon treating the products from the reactions of methylenecyclobutanes with N-bromosuccinimide (N

N-bromosuccinimide and lithium bromide: An efficient combination for the dibromination of carbon-carbon unsaturated bonds

Compounds possessing unsaturated bonds such as alkenes, alkynes, allenes, and methylenecyclopropanes (MCPs) can be dibrominated within minutes by NBS and lithium bromide in THF at room temperature in good to excellent yields under mild conditions. Georg Thieme Verlag Stuttgart.

Dihalogenation of gem-aryl-disubstituted methylenecyclopropanes by DEAD, DIAD/TiX4 or free halogen

The reaction of gem-aryl-disubstituted methylenecyclopropanes with TiX 4/diethyl azodicarboxylate and TiX4/diisopropyl azodicarboxylate in 1,2-dichloroethane gave the dihalogenated ring-opened product, 2,4-dihalobut-1-ene, in moderate-to-excellent yields under mild conditions. On the basis of the proposed Orton-type mechanism, we found that this reaction can also be carried out with free halogens such as bromine or iodine to give the same products in good yields. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

CuX2-Mediated Halogenation of Alkylidenecyclopropanes: A Highly Efficient and Stereoselective Method for the Preparation of Z-2, 4-Dihalobutenes

A convenient and efficient method for the synthesis of (Z)-2,4- dihalobutenes, a useful building block in organic synthesis, was reported in good yield by the reaction of alkylidenecyclopropanes and CuX2 (or CuI/I2).

Novel Tunable CuX2-Mediated Cyclization Reaction of Cyclopropylideneacetic Acids and Esters for the Facile Synthesis of 4-Halomethyl-2(5H)-furanones and 4-Halo-5,6-dihydro-2H-pyran-2-ones

(Matrix Presented) A mixture of cyclopropylideneacetic acids (or esters) and CuBr2 (or CuI/I2) in aqueous acetonitrile afforded 4-substituted 2(5H)-furanones or 3,4 substituted 5,6 dihydro-2H-pyran-2-ones in moderate to good yields.