1530-21-8

Basic information

• Product Name: Benzene, 1,1'-(1-octenylidene)bis-
• CAS NO: 1530-21-8
• Molecular Formula: C20H24
• Molecular Weight: 264.411
• Mol File: 1530-21-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 367.64°C (estimate)
• Density: 0.9513
• Refractive Index: 1.5570
• CAS DataBase Reference: Benzene, 1,1'-(1-octenylidene)bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(1-octenylidene)bis-(1530-21-8)
• EPA Substance Registry System: Benzene, 1,1'-(1-octenylidene)bis-(1530-21-8)

Safety Data

• Hazardous Substances Data: 1530-21-8(Hazardous Substances Data)

Upstream product

• 143101-90-0 2,2-diphenylcyclononanone 
• 143101-92-2 10-phenylbicyclo<9.2.2>pentadeca-10,12,14-trien-2-one 
• 1119-82-0 dichloro-1,1 octene-1 
• 38111-44-3 phenylzinc(II) bromide 
• 111-11-5 methyl octanate 

Relevant articles and documents

Pd-catalyzed selective tandem arylation-alkylation of 1,1-dihalo-1-alkenes with aryl- and alkylzinc derivatives to produce α-alkyl-substituted styrene derivatives

Trans -selective monoarylation of 1,1-dibromo- and 1,1-dichloro-1-alkenes (1) can be achieved in >80% yields and in ≥98-99% stereoselectivity with arylzinc bromides in the presence of a catalytic amount of Cl2Pd(DPEphos) or Cl2Pd(dppb), the former permitting cleaner and higher yielding reactions. Although THF is a generally satisfactory solvent, ether and toluene are superior to THF in some cases. The second substitution of (Z)-α-bromostyrenes (3) with alkylzincs in the presence of 2 mol% of Pd(t Bu3P)2 proceeds to give the corresponding 2 in >90% yields and in ≥98-99% stereoselectivity. Although somewhat less satisfactory, the use of Cl2Pd(DPEphos) permits a one-pot tandem arylation-alkylation.

Effects of chain length on behavior of biradicals generated from Norrish type I reaction of 2,2-diphenylcycloalkanones. Isolation and photochemistry of intermediate methylenecyclohexadienyl ketones

The reaction course of biradicals, O=C(↑)-(CH2)(n-2)-C(↑)Ph2, generated from Norrish type I reaction of 2,2-diphenylcycloalkanones with various ring sizes, is switched from intramolecular disproportionation (n = 6,7) to acyl-phenyl r