313699-77-3

Basic information

• Product Name: C₆H₄Si₂(CH₃)4⁽²⁾HGe(CH₃)2C₆H₅
• CAS NO: 313699-77-3
• Molecular Weight: 374.173
• Mol File: 313699-77-3.mol

Chemical Properties

• CAS DataBase Reference: C₆H₄Si₂(CH₃)4⁽²⁾HGe(CH₃)2C₆H₅(CAS DataBase Reference)
• NIST Chemistry Reference: C₆H₄Si₂(CH₃)4⁽²⁾HGe(CH₃)2C₆H₅(313699-77-3)
• EPA Substance Registry System: C₆H₄Si₂(CH₃)4⁽²⁾HGe(CH₃)2C₆H₅(313699-77-3)

Safety Data

• Hazardous Substances Data: 313699-77-3(Hazardous Substances Data)

Upstream product

• 313699-64-8 deuteriodimethylphenylgermane 
• 109756-04-9 2,3-benzo-1,1,2,2-tetramethyl-1,2-disilacyclopent-3-ene 

Relevant articles and documents

A 3,4-benzo-1,2-germacyclobut-3-ene and related compounds. Palladium-catalyzed a-metathesis, dehydrogenative coupling and hydrogermylation of the Ge-Ge σ-bond

In the presence of catalytic amounts of Pd(PPh3)4, 3,4-benzo-1,1,2,2-tetraethyl-1,2-germacyclobut-3-ene (1) readily undergoes the reversible σ-bond metathesis to give a dimer, 1,2,5,6-dibenzo-3,4,7,8-tetragermacycloocta-1,5-diene (6) below 100°C. However, at 160°C in toluene containing catalytic amounts of Pd(PPh3)4, both 1 and 6 afford an unsymmetrical dimer, 1,2,4,5-dibenzo-3,6,7,8-tetragermacycloocta-1,4-diene (8) with two isomeric products. In the presence of Pd(PPh3)4, 1,2-bis(diethylgermyl)benzene (18) undergoes dehydrocouling to give 1, which is smoothly converted to 6 under these conditions. The metal-metal σ-bonds of 1 and its silicon analogue are highly susceptible to hydrogermylation but not to hydrosilylation in the presence of Pd(PPh3)4.