91585-31-8

Basic information

• Product Name: Benzene, 1-methyl-4-[(phenylseleno)ethynyl]-
• CAS NO: 91585-31-8
• Molecular Formula: C15H12Se
• Molecular Weight: 271.22
• Mol File: 91585-31-8.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: Benzene, 1-methyl-4-[(phenylseleno)ethynyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-methyl-4-[(phenylseleno)ethynyl]-(91585-31-8)
• EPA Substance Registry System: Benzene, 1-methyl-4-[(phenylseleno)ethynyl]-(91585-31-8)

Safety Data

• Hazardous Substances Data: 91585-31-8(Hazardous Substances Data)

Upstream product

• 1666-13-3 diphenyl diselenide 
• 33491-05-3 1-(2-bromoethynyl)-4-methylbenzene 
• 5707-04-0 Phenylselenyl chloride 
• 766-97-2 4-n-methylphenylacetylene 
• 91585-38-5 2-Phenylselanyl-1-p-tolyl-2-(triphenyl-λ⁵-phosphanylidene)-ethanone 
• 1777-53-3 1-(p-tolyl)-2-(triphenylphosphoranylidene)ethanone 
• 34837-55-3 Phenylselenyl bromide 

Downstream Products

• 1237760-31-4 diethyl 2-(4-methylphenyl)ethynyl-3-phenylselanyl-2-butenedicarboxylate 
• 60466-31-1 (Z)-1-methyl-4-(2-phenylselanylvinyl)-benzene 
• 28622-61-9 butyl phenyl selenide 
• 2227-58-9 3-(4-methylphenyl)prop-2-ynoic acid 
• 22666-07-5 di-p-tolylbutadiyne 

Relevant articles and documents

New arylselanylpyrazole-copper catalysts: Highly efficient catalytic system for C–Se and C–S coupling reactions

We describe herein the use of arylselanylpyrazole–copper complexes as versatile catalysts for C–Se and C–S coupling reactions. The performance of these complexes for C–Se reactions was investigated in chalcogenoacetylene synthesis. The reactions were carried out under mild and aerobic conditions and afforded selanylalkynes bearing a variety of electron-withdrawing and electron-donating groups. The performance of these catalysts for C–S coupling was investigated through the reaction of aryl halides with thiols and products were obtained in moderate to excellent yields. A plausible mechanism for selenoacetylene synthesis is also suggested, and the 77Se NMR results show that these arylselanylpyrazole ligands act as hemilabile ligands. High-resolution mass spectrometry was used to investigate the intermediates and also to corroborate the proposed catalytic cycle.

Magnetite (Fe3O4) nanoparticles: An efficient and recoverable catalyst for the synthesis of alkynyl chalcogenides (selenides and tellurides) from terminal acetylenes and diorganyl dichalcogenides

We present herein a new and efficient methodology for the synthesis of alkynyl chalcogenides from terminal acetylenes and diorganyl dichalcogenides, catalyzed by Fe3O4 nanoparticles. This new approach provided the desired products in good to excellent yields. Moreover, the catalyst was easily recoverable using an external magnet and reused for further experiments without loss of catalytic activity.

An efficient and general procedure for the synthesis of alkynyl chalcogenides (selenides and tellurides) by alumina-supported Cu(II)-catalyzed reaction of alkynyl bromides and diphenyl dichalcogenides

Alumina (Al2O3) supported Cu(II) efficiently catalyzes the reaction of alkynyl bromides and diphenyl diselenides and ditellurides in presence of Zn dust or indium(I) bromide to provide the corresponding alkynyl selenides and tellurides. The reactions of a wide variety of substituted alkynyl bromides have been addressed. The zinc dust or InBr is required for the cleavage of diphenyl selenides/tellurides. The mechanism of the reaction is established. The yields of products are high and the catalyst is recycled.