30006-66-7

Basic information

• Product Name: Silane, (diazomethylene)bis[trimethyl-
• CAS NO: 30006-66-7
• Molecular Formula: C7H18N2Si2
• Molecular Weight: 186.404
• Mol File: 30006-66-7.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: Silane, (diazomethylene)bis[trimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, (diazomethylene)bis[trimethyl-(30006-66-7)
• EPA Substance Registry System: Silane, (diazomethylene)bis[trimethyl-(30006-66-7)

Safety Data

• Hazardous Substances Data: 30006-66-7(Hazardous Substances Data)

Upstream product

• 13686-33-4 t-butyl azide 
• 108148-61-4 4,4-Dimethyl-3-(triphenylsilyl)-5,5-bis(trimethylsilyl)-1,2,3-triaza-4-sila-1-cyclopenten 
• 4648-54-8 trimethylsilylazide 
• 108148-86-3 4,4-Dimethyl-3-p-tolyl-5,5-bis(trimethylsilyl)-1,2,3-triaza-4-sila-1-cyclopenten 
• 80431-43-2 2,2-Dimethyl-4,4-diphenyl-3,3-bis(trimethylsilyl)-1-oxa-2-silacyclobutan 
• 18107-18-1 diazomethyl-trimethyl-silane 
• 103457-88-1 azido(di-tert-butyl)(methyl)silane 
• 117984-10-8 Brom(bromdiphenylsilyl)bis(trimethylsilyl)methan 
• 117984-08-4 Brom(fluordiphenylsilyl)bis(trimethylsilyl)methan 
• 69322-38-9 tri-t-butylsilyl azide 
• 108148-59-0 3-(tert-Butyldimethylsilyl)-4,4-dimethyl-5,5-bis(trimethylsilyl)-1,2,3-triaza-4-sila-1-cyclopenten 
• 80431-36-3 2,2-Dimethyl-4,4-diphenyl-1,3,3-tris(trimethylsilyl)-1-aza-2-silacyclobutan 
• 5599-34-8 triphenylsilyl azide 
• 119-61-9 benzophenone 

Relevant articles and documents

Tetrakis(trimethylsilyl)tetrahedrane

Tetrakis(trimethylsilyl)tetrahedrane 3 has been synthesized upon irradiation of tetrakis(trimethylsilyl)cyclobutadiene 8, which can be prepared either by thermal nitrogen elimination from trimethylsilyl-[1,2,3-tris(trimethylsilyl)-2-cycloprop-l-enyl] diaz

Storing of the Labile Silaethene Me2Si=C(SiMe3)2 with Benzophenone

Benzophenone Ph2C=O is able to "store" the silaethene Me2Si=C(SiMe3)2 (1), produced from Me2SiX-CLi(SiMe3)2 (X = F, Br, Ph2PO4), under formation of a cycloadduct (2b).At about 100 deg C, 2b by way of 1 transfers into the cycloadduct of 1 and Ph2C=O (3b), which in the course of transformation decomposes visibly (in the absence of Me3SiCl) or only by traces (in the presence of Me3SiCl) to secondary products.In the presence of ROH (R = H, Me, tBu, MeCO) or PhN=NSiMe3 or RN3 (R = tBu, Me3Si) or 2,3-dimethylbutadiene (dmb) about 100 deg C 2b and 3b form by way of 1 insertion products of 1 into the OH bond of ROH or a cycloadduct of 1 and PhN=NSiMe3 or cycloadducts of 1 and RN3 or cycloadduct and an ene reaction product of 1 and dmb.The rate constants/half lives of the first order transformation of 2b into 3b or of the first order decomposition of 2b or of 3b in the presence of reactive traps for 1 (ROH, Me3SiN3; benzene as solvent) are in the order of 0.3E-4 s-1/τ1/2 = 7 h (2b --> 3b; 90 deg C) 3E-4 s-1/τ1/2 = 3/4 h (2b + traps; 90 deg C), 0.4E-4 s-1/τ1/2 = 5 h (3b + traps, 110 deg C). - Keywords: Silaethene Me2Si=C(SiMe3)2, Insertions, Cycloadditions, Kinetic Studies

Preparation of Silan- and Germanimines Me2E=NR (E = Si, Ge) from Sila- and Germadihydrotriazoles

Sila- or germaethene Me2E=C(SiMe3)2 quantitatively react with azidoalkanes or -silanes RN3 nMe3-nSi, Ph3Si, (Me3Si)2NMe2E, Me2SiN3> at -78 deg C by cycloaddition to form sila- or germadihydrotriazoles 3 and 4, respectively.The latter decompose partly below (E = Si, R = silyl), partly at or above room temperature (E = Si, R = alkyl; E = Ge) in a first-order reaction by isomerization into diazomethane derivatives as well as by cycloreversion into (Me3Si)2C=N=N and silan- or germanimines Me2E=NR (rate constants: Table 1).The saturated compounds Me2E= NR are formed as short-lived intermediates.Their stabilization, as a rule, takes place by dimerization and, in exceptional cases, by reaction with the silan- or germanimine sources (R = SiMe3) or by intramolecular migration processes .