108148-62-5

Basic information

• Product Name: silyl>(trimethylsilyl)diazomethan
• CAS NO: 108148-62-5
• Molecular Weight: 517.969
• Mol File: 108148-62-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: silyl>(trimethylsilyl)diazomethan(CAS DataBase Reference)
• NIST Chemistry Reference: silyl>(trimethylsilyl)diazomethan(108148-62-5)
• EPA Substance Registry System: silyl>(trimethylsilyl)diazomethan(108148-62-5)

Safety Data

• Hazardous Substances Data: 108148-62-5(Hazardous Substances Data)

Upstream product

• 5599-34-8 triphenylsilyl azide 
• 62139-74-6 Brom(bromdimethylsilyl)bis(trimethylsilyl)methan 
• 108148-61-4 4,4-Dimethyl-3-(triphenylsilyl)-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 
• 13686-33-4 t-butyl azide 

Relevant articles and documents

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 .