128396-82-7

Basic information

• Product Name: 9-benzyl-9-phenyl-9,10-dihydro-9-silaanthracene
• CAS NO: 128396-82-7
• Molecular Weight: 362.546
• Mol File: 128396-82-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 9-benzyl-9-phenyl-9,10-dihydro-9-silaanthracene(CAS DataBase Reference)
• NIST Chemistry Reference: 9-benzyl-9-phenyl-9,10-dihydro-9-silaanthracene(128396-82-7)
• EPA Substance Registry System: 9-benzyl-9-phenyl-9,10-dihydro-9-silaanthracene(128396-82-7)

Safety Data

• Hazardous Substances Data: 128396-82-7(Hazardous Substances Data)

Upstream product

• 6921-34-2 benzylmagnesium chloride 
• 98-13-5 Phenyltrichlorosilane 
• 61592-89-0 2,2’-dibromodiphenylmethane 
• 18080-90-5 benzyldichlorophenylsilane 

Relevant articles and documents

FLASH VACUUM THERMOLYSIS AND MASS SPECTROSCOPY OF 9,10-DIHYDRO-9-SILAANTHRACENES

The synthesis of 9,10-dibenzyl-9,10-diphenyl-9,10-dihydro-9-silaanthracene (8), and of some similarly substituted 9,10-dihydro-9-silaanthracenes is reported.Compound 8 was prepared with the aim of converting it by Flash Vacuum Thermolysis (FVT) into 9,10-diphenyl-9-silaanthracene (4), with 1,2-diphenylethane (5) as the expected byproduct.At lower temperatures, a surprisingly stable, dark green organic radical was formed, which was investigated by ESR and ENDOR spectroscopy and tentatively assigned the triphenylmethyl type structure 9.Both benzyl groups of 8 were efficiently cleaved off, presumably to give 4, and the yield of 5 was about 70percent at higher temperatures.However, no direct information on the existence of 4 was obtained, and it was concluded that it polymerizes under the conditions of reaction.Parallel to FVT experiments, the formation of ionized 9-silaanthracenes in the EI mass spectra of 8 and of analogues was investigated.Fragmentation leading to the ionized 9-silaanthracenes was found to be favoured by the presence of one or two phenyl groups at silicon in the precursor ion of a benzyl group and a hydrogen at the 10-carbon position.