20213-96-1

Basic information

• Product Name: 1,1,1-trimethyl-2,2,2-triphenyldigermane
• Synonyms: 1,1,1-trimethyl-2,2,2-triphenyldigermane
• CAS NO: 20213-96-1
• Molecular Weight: 421.602
• Mol File: 20213-96-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1,1,1-trimethyl-2,2,2-triphenyldigermane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,1-trimethyl-2,2,2-triphenyldigermane(20213-96-1)
• EPA Substance Registry System: 1,1,1-trimethyl-2,2,2-triphenyldigermane(20213-96-1)

Safety Data

• Hazardous Substances Data: 20213-96-1(Hazardous Substances Data)

Upstream product

• 1048-05-1 tetraphenylgermane 
• 3839-32-5 triphenyl germyllithium 
• 1066-37-1 trimethylbromogermane 
• 100-58-3 phenylmagnesium bromide 
• 132385-06-9 1,1,1-trimethyl-2,2-diphenyldigermane 
• 1626-24-0 chlorotriphenylgermane 
• 27601-58-7 trimethylgermyltriphenylsilane 
• 108-86-1 bromobenzene 
• 936213-06-8 [(1,1-diphenyl-2,2,2-trimethyldigermanyl)lithium(tetrahydrofuran)3] 

Downstream Products

• 1359144-15-2 Ph₂(OTf)Ge₂Me₃ 
• 1359144-16-3 Ph₂(OTf)Ge₂Ph₂GeMe₃ 
• 288861-79-0 1-(trimethylgermyl)-2-((2,3-dimethyl-1-buten-4-yl)-diphenylgermyl)benzene 
• 1626-00-2 phenyltrimethylgermane 
• 2816-43-5 triphenylgermane 
• 2817-44-9 methyltriphenylgermane 
• 5764-66-9 1,1,3,4-tetramethyl-1-germacyclopenta-3-ene 
• 5764-69-2 1,1-diphenyl-3,4-dimethyl-1-germacyclopent-3-ene 
• 1449-63-4 trimethylgermane 
• 1529-47-1 chlorotrimethylgermane 
• 1626-24-0 chlorotriphenylgermane 
• 124908-64-1 1,1,1-trimethyl-2,2-diphenylchlorodigermane 

Relevant articles and documents

Reaction of germanes and digermanes with triflic acid: The route to novel organooligogermanes

Novel germanium containing triflates were prepared from the reactions of trifluoromethanesulfonic acid with tetraphenylgermane (1) and digermanes (Ph3GeGeMe3 (4), Ph3GeGePh3 (5)). The improved procedures for synthesis of known organogermanium compounds (Ph4Ge (1), Ph3GeCl (2), Ph3GeGeMe3 (4), Ph3GeGePh3 (5)) were also presented. The crystal structure of Ph3GeOTf (6) and Ph2Ge(OTf)Ge(OTf)Ph 2 (7) was studied by X-ray analysis. In 7 each germanium atom is pentacoordinated due to intramolecular interaction with O atom of the neighboring triflate group.

The Si-Ge bond: Rearrangements, migrations, and cleavages

1-Chloropentamethyl-1-silylgermane, ClSiMe2GeMe3 (1), and 1-chloromethylpentamethyl-1-silylgermane, ClCH2SiMe2GeMe3 (2), undergo Lewis acid-catalyzed rearrangements to ClGeMe2SiMe3 (3) and ClSiMe2CH2GeMe3 (4), respectively. Under similar conditions the isomeric ClGeMe2SiMe3 (3) undergoes a fragmentation reaction involving the formation of Me3SiCl and Me2GeCl2, and ClCH2GeMe2SiMe3 (5) rearranges to ClMe2GeCH2SiMe3 (6). Methyllithium treatment of Ph3SiGeMe3 and Me3SiGePh3 and [1,1′]-tetramethylsilylgermylferrocenpphane [(1,1′-Me2SiMe2Ge((η5-C 5H4)2Fe] results in methylation of the silicon atom and formation of the corresponding germyl anion. When the silicon-germanium-bonded fragment is incorporated into a bimetallic transition metal complex, i.e., (η5-C5H5)Fe(CO)2-SiMe 2GeMe2Fe(η5-C5H 5)(CO)2 (7), base treatment with 1 equiv of lithium diisopropylamide (LDA) leads to predominance of silyl group migration to the cyclopentadienyl ring over germyl migration (9:1). Treatment of 7 with a 2.5 molar excess of LDA, followed by quenching with Me3SnCl, results in migration of both the silyl and germyl ends of the bridging group to form (η5-{Me3Sn(CO)2Fe(η5-C 5H4GeMe2SiMe2C5H 4})Fe(CO)2SnMe3 (8).