108148-83-0

Basic information

• Product Name: 1,2,3-Triaza-4-silacyclopent-1-ene, 3-(1,1-dimethylethyl)-4,4-dimethyl-5,5-bis(trimethylsilyl)-
• CAS NO: 108148-83-0
• Molecular Formula: C13H33N3Si3
• Molecular Weight: 315.682
• Mol File: 108148-83-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,2,3-Triaza-4-silacyclopent-1-ene, 3-(1,1-dimethylethyl)-4,4-dimethyl-5,5-bis(trimethylsilyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3-Triaza-4-silacyclopent-1-ene, 3-(1,1-dimethylethyl)-4,4-dimethyl-5,5-bis(trimethylsilyl)-(108148-83-0)
• EPA Substance Registry System: 1,2,3-Triaza-4-silacyclopent-1-ene, 3-(1,1-dimethylethyl)-4,4-dimethyl-5,5-bis(trimethylsilyl)-(108148-83-0)

Safety Data

• Hazardous Substances Data: 108148-83-0(Hazardous Substances Data)

Upstream product

• 13686-33-4 t-butyl azide 
• 80431-42-1 4,4a-dihydro-3,3-dimethyl-1-phenyl-4,4-bis(trimethylsilyl)-3H-2-oxa-3-silanaphthaline 

Relevant articles and documents

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