22498-86-8

Basic information

• Product Name: 1,1'-[1,4-Bis(1-methylethylidene)-2-butyne-1,4-diyl]bisbenzene
• Synonyms: 1,1'-[1,4-Bis(1-methylethylidene)-2-butyne-1,4-diyl]bisbenzene
• CAS NO: 22498-86-8
• Molecular Formula: C₂₂H₂₂
• Molecular Weight: 286.41
• Mol File: 22498-86-8.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,1'-[1,4-Bis(1-methylethylidene)-2-butyne-1,4-diyl]bisbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-[1,4-Bis(1-methylethylidene)-2-butyne-1,4-diyl]bisbenzene(22498-86-8)
• EPA Substance Registry System: 1,1'-[1,4-Bis(1-methylethylidene)-2-butyne-1,4-diyl]bisbenzene(22498-86-8)

Safety Data

• Hazardous Substances Data: 22498-86-8(Hazardous Substances Data)

Upstream product

• 115-19-5 2-methyl-but-3-yn-2-ol 
• 5929-72-6 2,7-dimethyl-octa-3,5-diyne-2,7-diol 
• 1431381-65-5 3,6-dibromo-2,7-dimethylocta-2,6-dien-4-yne 
• 98-80-6 phenylboronic acid 
• 886-66-8 1,4-diphenyl-1,3-butadiyne 
• 611-70-1 phenyl isopropyl ketone 
• 111679-76-6 4-phenyl-5-methyl-2-hexyn-4-ol 
• 883902-66-7 (1-isopropylidene-but-2-ynyl)-benzene 
• 140173-59-7 3,3,3',3'-tetramethyl-4',5'-diphenyl-4,5'-bi-3H-pyrazolyl 

Relevant articles and documents

Palladium-catalyzed bond reorganization of 1,3-diynes: An entry to diverse functionalized 1,5-dien-3-ynes

A mild and efficient method for the synthesis of functionalized 1,5-dien-3-ynes from 1,3-diynes under PdII catalysis is described. The process allows quick and atom-economical assembly of various dihalo-, haloacyl-, and diacyl-substituted 1,5-dien-3-ynes in high yields. The switch of selectivity in the formation of these dienyne products can be controlled by the choice of catalysis system and reaction conditions.

Alkyne metathesis: Toward simplicity and efficiency

No catalyst pre-activation, no suicide alkyne, and no additive is required in an extremely simple procedure for the metathesis of alkyl-, alkenyl-, and aryl-propynes: just mix Mo(CO)6, p-chlorophenol, and the alkyne in 1,2-dichloroethane, heat at 85°C for 9-24 h, and the symmetrical alkyne is produced in ca. 95% yield.

Photocatalytic Transformations of 3,3,3,3-Tetramethyl-4,5-diphenyl-4,5-bi-3H- pyrazolyl. Synthesis and Photolysis of the First (1-Cyclopropenyl)pyrazole

The main product of exhaustive photolysis of 3,3,3′,3′-tetramethyl-4′,5-diphenyl-4,5′-bi-3H-pyrazolyl in the presence of Rh6(CO)16 is 2,7-dimethyl-3,6-diphenylocta-2,6-dien-4-yne. At shorter irradiation and with less catalyst the int

REACTION OF 2-DIAZOPROPANE WITH DIPHENYLBIACETYLENE AND PHOTOLYSIS OF THE OBTAINED 3H-PYRAZOLES. SYNTHESIS OF 3,3-DIMETHYL-1-PHENYL-2-PHENYLETHYNYLCYCLOPROPENE - THE FIRST CONJUGATED ALKYNYLCYCLOPROPENE

The addition of 2-diazopropane to diphenylbiacetylene takes place slowly.Even with a large excess of the diazo compound it leads to a mixture in which the main components are initial biacetylene, two regioisomeric phenylethynyl-3H-pyrazoles, and the produ