255849-46-8

Basic information

• Product Name: O(Si(C₆H₅)2OBO₂C₃H₃(CH₃)3)2
• Synonyms: O(Si(C₆H₅)2OBO₂C₃H₃(CH₃)3)2
• CAS NO: 255849-46-8
• Molecular Weight: 666.534
• Mol File: 255849-46-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: O(Si(C₆H₅)2OBO₂C₃H₃(CH₃)3)2(CAS DataBase Reference)
• NIST Chemistry Reference: O(Si(C₆H₅)2OBO₂C₃H₃(CH₃)3)2(255849-46-8)
• EPA Substance Registry System: O(Si(C₆H₅)2OBO₂C₃H₃(CH₃)3)2(255849-46-8)

Safety Data

• Hazardous Substances Data: 255849-46-8(Hazardous Substances Data)

Upstream product

• 78-60-4 2-Hydroxy-4,4,6-trimethyl-1,3,2-dioxaborinane 
• 7756-87-8 1,3-dichloro-1,1,3,3-tetraphenyldisiloxane 
• 107-41-5 2-methyl-2,4-pentanediol 
• 1104-93-4 1,1,3,3-tetraphenyldisiloxane-1,3-diol 
• 11113-50-1 boric acid 

Relevant articles and documents

Compounds containing B-O-X bonds (X=Si, Ge, Sn, Pb): Part 5. Synthesis of chain borosilicates containing B:Si ratios of 2:1, 2:2, 2:3 and 2:4. Crystal structure of (O-CMe2CH2CHMe-O-B-O)2SiBut 2

Twelve borosilicates with the general formula O-Y-O-B-O-(SiPh2O)n-B-O-Y-O (where n=1, 2, 3 or 4; Y=one of the organic groups CMe2CMe2, CMe2CH2CHMe, CMe2CH2CMe2 or CHPriCMe2CH2) were prepared. Three synthetic routes were investigated, including a one-pot self-assembly reaction of two equivalents each of boric acid, silanediol and organic diol. The probable sequence for this reaction is discussed. The borosilicates were either solids or viscous liquids and were colourless. They formed cyclosiloxane species when thermally decomposed or reacted with either water or potassium trimethylsilanolate. They were unreactive to triethylamine, di-iso-propylamine, pyridine or ethylenediamine. The di-tert-butyl species (O-CMe2CH2CHMe-O-B-O)2SiBut 2 was prepared and structurally characterised using X-ray techniques. The parameters associated with the B-O-Si bonds were a B-O-Si angle of 141.5(2)° and B-O and Si-O distances of 1.360(4) and 1.625(2) A, respectively. Elsevier Science Ltd.