873956-01-5

Basic information

• Product Name: (C₆H₅)2SiC₄H₄(Si(CH₃)3)B(CHC₃H₆)2
• CAS NO: 873956-01-5
• Molecular Weight: 428.573
• Mol File: 873956-01-5.mol

Chemical Properties

• CAS DataBase Reference: (C₆H₅)2SiC₄H₄(Si(CH₃)3)B(CHC₃H₆)2(CAS DataBase Reference)
• NIST Chemistry Reference: (C₆H₅)2SiC₄H₄(Si(CH₃)3)B(CHC₃H₆)2(873956-01-5)
• EPA Substance Registry System: (C₆H₅)2SiC₄H₄(Si(CH₃)3)B(CHC₃H₆)2(873956-01-5)

Safety Data

• Hazardous Substances Data: 873956-01-5(Hazardous Substances Data)

Upstream product

• 873955-95-4 [(trimethylsilyl)ethynyl]diphenylvinylsilane 

Relevant articles and documents

An efficient route to substituted 1-silacyclopent-2-enes and 1-silacyclohex-2-enes via consecutive 1,2-hydroboration and 1,1-organoboration

The reaction of alkyn-1-yl(vinyl)silanes R2Si(C≡CR 1)CH=CH2 [R = Me (1), Ph (2); R1 = tBu (a), Ph (b), SiMe3 (c)] with 9-borabicyclo[3.3.1] nonane in a 1:1 ratio affords the 1-silacyclopent-2-ene derivatives 4a-c (R = Me) and 5a-c (R = Ph) as a result of selective intermolecular 1,2-hydroboration of the vinyl group, followed by intramolecular 1,1-organoboration of the alkynyl substituent. The analogous reaction sequence converts the alkyn-1-yl(allyl) dimethylsilanes 3a,c into the 1-silacyclohex-2-ene derivatives 7a,c. All reactions were monitored by 29Si NMR spectroscopy and the structural assignment of the final products was based on multinuclear magnetic resonance data (1H, 11B, 13C and 29Si NMR). The molecular structure of 6a was determined by X-ray analysis.