135251-53-5

Basic information

• Product Name: N,N'-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane
• Synonyms: N,N'-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane
• CAS NO: 135251-53-5
• Molecular Weight: 446.844
• Mol File: 135251-53-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: N,N'-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane(CAS DataBase Reference)
• NIST Chemistry Reference: N,N'-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane(135251-53-5)
• EPA Substance Registry System: N,N'-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane(135251-53-5)

Safety Data

• Hazardous Substances Data: 135251-53-5(Hazardous Substances Data)

Upstream product

• 2401-73-2 1,1,3,3-tetramethyl-1,3-dichlorodisiloxane 
• 62-53-3 aniline 

Downstream Products

• 1118-15-6 tetramethyl-1,3-disiloxanediol 
• 18187-24-1 sym-tetramethyldimethoxydisiloxane 
• 62-53-3 aniline 

Relevant articles and documents

Rate studies of the acid-catalyzed solvolysis of eight-membered cyclosilazoxanes

The solvolysis of N-phenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2-aza-4,6,8-trioxacyclooctane (1) and N,N'-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane (II) in methanol/water in the presence of an acetate buffer is a pseudo-first-order process, subject to general acid-catalysis.The catalytic rate constants have been determined spectrophotometrically for the solvolysis of I.The ring cleavage is slower than that of analogous six-membered cyclosilazoxanes, but the catalytic mode and the solvent isotope effect indicate a close mechanistic similarity between the solvolyses of six- and eight-membered rings.