86440-77-9

Basic information

• Product Name: Benzene, 1-(bromoethynyl)-3-nitro-
• CAS NO: 86440-77-9
• Molecular Formula: C8H4BrNO2
• Molecular Weight: 226.029
• Mol File: 86440-77-9.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Benzene, 1-(bromoethynyl)-3-nitro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(bromoethynyl)-3-nitro-(86440-77-9)
• EPA Substance Registry System: Benzene, 1-(bromoethynyl)-3-nitro-(86440-77-9)

Safety Data

• Hazardous Substances Data: 86440-77-9(Hazardous Substances Data)

Upstream product

• 937-31-5 (4-Nitrophenyl)acetylene 
• 3034-94-4 3-nitrophenylacetylene 
• 18462-34-5 (Z)-1-(2-bromovinyl)-4-nitrobenzene 
• 444681-65-6 1,1-dibromo-2-(3-nitrophenyl)ethene 
• 99-61-6 3-nitro-benzaldehyde 

Downstream Products

• 134682-52-3 1-(3-nitrophenyl)-4-(4-nitrophenyl)-1,3-butadiyne 
• 1327274-42-9 benzo[d]oxazol-2-yl(3-nitrophenyl)methanone 
• 1327274-38-3 2-(3-nitrobenzyl)benzoxazole 
• 1327274-43-0 5-methyl-2-(3-nitrobenzoyl)benzoxazole 
• 1260766-25-3 2-(3-nitrobenzyl)-5-methylbenzoxazole 
• 1174638-38-0 N-benzyl-N-4-toluenesulfonyl-4-methoxy-phenylethynylamine 
• 2227-64-7 3'-nitro-2-bromoacetophenone 
• 1206482-98-5 C₁₇H₁₀N₂O₃ 
• 134682-48-7 1-(3-azidophenyl)-4-(4-azidophenyl)-1,3-butadiyne 

Relevant articles and documents

Catalytic Synthesis of Dibenzazepines and Dibenzazocines by 7-Exo- and 8-Endo-Dig-Selective Cycloisomerization

The 7-exo- and 8-endo-dig-selective gold-catalyzed cycloisomerizations of 2-propargylamino biphenyl derivatives were developed. The reaction of terminal alkynes gave dibenzo[b,d]azepines by 7-exo-dig cycloisomerization. In contrast, when internal alkynes were subjected to the reaction, 8-endo-dig cycloisomerization proceeded to provide dibenzo[b,d]azocines. The nucleophilicity at the reaction site and the electron-withdrawing effect of a tosyl group were important for the present selective transformation. This protocol could be used for ynamide substrates and a silver-catalyzed reaction gave 7-exo-dig products selectively.

Copper-catalyzed N-alkynylations of sulfoximines with bromoacetylenes

N-Alkynylated sulfoximines have been obtained by copper-catalyzed cross-coupling reactions starting from NH-sulfoximines and bromoacetylenes in moderate to good yields. The reaction conditions are mild, and the substrate scope is wide.

Magnetic interaction between the triplet centers in ethynylenebis(phenylnitrenes) and 1,3-butadiyne-1,4-diylbis(phenylnitrenes)

The magnetic interaction of the two triplet phenylnitrene units linked together through an acetylene or a diacetylene linkage has been investigated by ESR spectroscopy. Two regioisomeric (meta,para′ and meta, meta′) diazides of 1,2-diphenylacetylene 12a a