87919-77-5

Basic information

• Product Name: Silacyclopent-2-ene, 1,1-dimethyl-4,5-diphenyl-, trans-
• CAS NO: 87919-77-5
• Molecular Formula: C18H20Si
• Molecular Weight: 264.442
• Mol File: 87919-77-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Silacyclopent-2-ene, 1,1-dimethyl-4,5-diphenyl-, trans-(CAS DataBase Reference)
• NIST Chemistry Reference: Silacyclopent-2-ene, 1,1-dimethyl-4,5-diphenyl-, trans-(87919-77-5)
• EPA Substance Registry System: Silacyclopent-2-ene, 1,1-dimethyl-4,5-diphenyl-, trans-(87919-77-5)

Safety Data

• Hazardous Substances Data: 87919-77-5(Hazardous Substances Data)

Upstream product

• 886-65-7 trans,trans-1,4-Diphenyl-1,3-butadiene 
• 86840-61-1 13,13-Dimethyl-1,10-diphenyl-13-silatricyclo<8.2.1.0^Δ2,9>trideca-11-en 
• 61704-90-3 1,5-diphenyl-8,8-dimethyl-8-silatricyclo<3.2.1.0^2,4>oct-6-ene 
• 10124-62-6 1,2-dimethoxy-1,1,2,2-tetramethyldisilane 

Relevant articles and documents

DIE CHEMIE DER SCHWEREN CARBEN-ANALOGEN R2M, M=Si, Ge, Sn. XI. REAKTIONEN VON THERMISCH ERZEUGTEM DIMETHYLSILYLEN MIT C-C-MEHRFACHBINDUNGEN

Phenylated alkynes from 1,4-disila-cyclohexadienes (VIII-X) with thermally generated Me2Si (200 deg C).Bulky substituents (CMe3, SiMe3) prevent the addition.The strained cycloalkyne 3,3,6,6-tetramethyl-1-thia-cycloheptyne-4 (XI), however, yields the known silirene XII (2,2,6,6,8,8-hexamethyl-8-sila-4-thia-bicycloΔ1.7>octane); its transformation to the 1,4-disila-cyclohexadiene is prevented by steric effects.Thermally stable 1,3-dienes give, depending on their substitution pattern, 1-silacyclopentenes-2 or -3.A mechanism is proposed giving the observed products via an initial 1,2-addition.