139192-36-2

Basic information

• Product Name: Phosphonic acid, [5-phenyl-4-(phenylamino)-3-(trimethylsilyl)-1H-pyrazol-1-yl]-, diethyl ester
• CAS NO: 139192-36-2
• Molecular Formula: C22H30N3O3PSi
• Molecular Weight: 443.558
• Mol File: 139192-36-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, [5-phenyl-4-(phenylamino)-3-(trimethylsilyl)-1H-pyrazol-1-yl]-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, [5-phenyl-4-(phenylamino)-3-(trimethylsilyl)-1H-pyrazol-1-yl]-, diethyl ester(139192-36-2)
• EPA Substance Registry System: Phosphonic acid, [5-phenyl-4-(phenylamino)-3-(trimethylsilyl)-1H-pyrazol-1-yl]-, diethyl ester(139192-36-2)

Safety Data

• Hazardous Substances Data: 139192-36-2(Hazardous Substances Data)

Upstream product

• 62-53-3 aniline 
• 73392-33-3 diethyl [2-oxo-1-phenyl-2-(phenylamino)ethyl]phosphonate 
• 2912-62-1 α-chlorophenylacetyl chloride 
• 5110-77-0 N-phenyl-α-chlorophenylacetamide 
• 73392-28-6 N-(2-diethoxyphosphoryl-2-phenylvinylidene)aniline 
• 18107-18-1 diazomethyl-trimethyl-silane 

Relevant articles and documents

Reaction of lithium trimethylsilyldiazomethanide with ketenimines bearing electron-withdrawing groups

Ketenimines bearing electron-withdrawing groups (X in 1) at the C2-position react with lithium trimethylsilyldiazomethanide [diazo(lithio)trimethylsilylmethane] to give 4-amino-3-trimethylsilylpyrazoles 4 or 5 mainly; in some cases 4-trimethylsilyl-1,2,3-triazole derivatives 3 were formed as the major products.