498547-55-0

Basic information

• Product Name: Benzene, 1,1'-[3,6-dibutyl-4,5-bis(methylene)-1,7-octadiyne-1,8-diyl]bis-
• CAS NO: 498547-55-0
• Molecular Formula: C30H34
• Molecular Weight: 394.6
• Mol File: 498547-55-0.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-[3,6-dibutyl-4,5-bis(methylene)-1,7-octadiyne-1,8-diyl]bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-[3,6-dibutyl-4,5-bis(methylene)-1,7-octadiyne-1,8-diyl]bis-(498547-55-0)
• EPA Substance Registry System: Benzene, 1,1'-[3,6-dibutyl-4,5-bis(methylene)-1,7-octadiyne-1,8-diyl]bis-(498547-55-0)

Safety Data

• Hazardous Substances Data: 498547-55-0(Hazardous Substances Data)

Upstream product

• 2384-90-9 1,2-Heptadiene 
• 1199-95-7 1-(trimethylstannyl)-2-phenylethyne 
• 498547-51-6 3-butyl-5-phenyl-2-trimethylstannyl-1-penten-4-yne 

Relevant articles and documents

Nickel-catalyzed acylstannylation and alkynylstannylation of 1,2-dienes

Carbostannylation of 1,2-dienes using acyl- and alkynylstannanes was achieved by means of nickel catalysis. In particular, acylstannylation of 1,2-dienes could be carried out with bis(1,5-cyclooctadiene)nickel [Ni(cod) 2] and acylstannanes to give selectively α-acylmethyl(vinyl) stannanes. The reaction was also applicable to acylstannanes prepared in situ by protonolysis of α-alkoxyalkenylstannanes or by reactions of α-silyloxyvinylstannanes with aldehyde acetals. For alkynylstannylation, a combination of Ni(cod)2 and 1,3-bis(diphenylphosphino)propane (dppp) was found to be effective to afford α-alkynylmethyl(vinyl)stannanes, whereas the Ni(cod)2-1,3-bis(dimethylphosphino)propane (dmpp) catalyst switched the regioselectivity to give (Z)-α- alkynylmethyl(alkenyl)stannanes. The acylstannylation products were successfully converted into various conjugated or unconjugated enones by a combination of cross-coupling and NaH-catalyzed isomerization. The alkynylstannylation products were transformed by cross- or homo-coupling reactions to various enynes or 2,3-bis(alkynylmethyl)-1,3-dienes, versatile precursors for variously substituted polycyclic compounds.