34574-27-1

Basic information

• Product Name: DIETHYLBORYL PIVALATE
• Synonyms: DIETHYLBORYL PIVALATE;TRIMETHYLACETIC ACID, ANHYDRIDE WITH DIETHYLBORINIC ACID;TRIMETHYLACETIC ACID ANHYDRIDE WITH &;2,2-Dimethylpropanoic acid diethylborinic anhydride;Pivaloyloxydiethylborane
• CAS NO: 34574-27-1
• Molecular Formula: C9H19BO2
• Molecular Weight: 170.06
• Mol File: 34574-27-1.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 60 °C/10 mmHg(lit.)
• Flash Point: -23 °C
• Appearance: /
• Density: 0.863 g/mL at 25 °C(lit.)
• Vapor Pressure: 1.21mmHg at 25°C
• Refractive Index: 1.398
• CAS DataBase Reference: DIETHYLBORYL PIVALATE(CAS DataBase Reference)
• NIST Chemistry Reference: DIETHYLBORYL PIVALATE(34574-27-1)
• EPA Substance Registry System: DIETHYLBORYL PIVALATE(34574-27-1)

Safety Data

• Hazard Codes: F,C
• Statements: 14-17-34
• Safety Statements: 16-26-27-36/37/39-45
• RIDADR: 2845
• HazardClass: 4.2
• PackingGroup: I
• Hazardous Substances Data: 34574-27-1(Hazardous Substances Data)

Usage

InChI:InChI=1/C9H19BO2/c1-6-10(7-2)12-8(11)9(3,4)5/h6-7H2,1-5H3

Upstream product

• 217324-53-3 HO₂CC(CH₃)3*C₃H₄N₂ 
• 97-94-9 triethyl borane 
• 75-98-9 Trimethylacetic acid 

Downstream Products

• 51346-32-8 2-ethyl-4,6-diphenyl-2H-[1,2]oxaborinine 
• 58881-48-4 O¹,O⁶;O²,O³;O⁴,O⁵-tris-ethylboranediyl-galactitol 

Relevant articles and documents

Pyrazole complexes of acyloxydialkylboranes

The reaction of Me3CCOOBEt2 with pyrazole led to the formation of the stable addition complex 1, which was found to be monomeric in solution. The reaction of 9-H-9-borabicyclo[3.3.1]nonane (9-H-9-BBN)2 with pyrazole and pivalic acid yielded a similar complex Me3CCOO(9-BBN)-pzH 2. Crystallographic analysis of 2 revealed a dimeric structure due to the strong hydrogen bonding between azole hydrogen and carbonyl oxygen. The one boron-carbon bond of compound 1 cleaves readily with triethylborane at 20°C with the evolution of ethane, giving a species Me3CCOO(BEt2)2pz 3 with a seven-membered heterocyclic ring as the main structural feature.