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HomeProduct name listTrimethyl orthobutyrate

Trimethyl orthobutyrate

Synonym(s):1,1,1-Trimethoxybutane

  • CAS NO.:43083-12-1
  • Empirical Formula: C7H16O3
  • Molecular Weight: 148.2
  • MDL number: MFCD00008480
  • EINECS: 256-079-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-31 13:32:20
Trimethyl orthobutyrate Structural

What is Trimethyl orthobutyrate?

Chemical properties

Clear colorless to slightly yellow liquid

The Uses of Trimethyl orthobutyrate

Trimethyl orthobutyrate has been used in the preparation of:

  • 5-acetamido-9-O-butyroyl-3,5-dideoxy-D-glycero-2-nonulo pyranosonic acid
  • 9-O-butyroyl-3,5-dideoxy-5-glycoloylamido-D-glycero-2-nonulo pyranosonic acid

The Uses of Trimethyl orthobutyrate

Trimethyl orthobutyrate can be used for:

  • Acylation at OH-9 of N-acetylneuraminic acid and N-glycoloylneuraminic acid to give the corresponding 9-O-acylated derivatives.
  • Conversion of 2-amino-N-(1-H-benzimidazol-2-yl)benzamide to 2-propyl-3-benzimidazolyl-4(3H)-quinazolinone.
  • Preparation of 2-propyl substituted benzimidazoles from 1,2-benzenediamines.

It can also be used in the total synthesis of dl-camptothecin, Olmesartan Medoxomil, DE and CDE ring analogs of camptothecin, and homologs of 1,25-dihydroxyvitamin D3.

General Description

Kinetics and mechanism of gas-phase elimination of trimethyl orthobutyrate has been examined over the temperature range of 310-369°C and pressure range of 50-130Torr.

Properties of Trimethyl orthobutyrate

Boiling point: 145-147 °C (lit.)
Density  0.926 g/mL at 25 °C (lit.)
refractive index  1.402-1.404
Flash point: 50 °C
storage temp.  Flammables area
solubility  Chloroform, Ethyl Acetate
form  Liquid
color  Clear colorless to slightly yellow
Specific Gravity 0.926
BRN  1737319
CAS DataBase Reference 43083-12-1(CAS DataBase Reference)
NIST Chemistry Reference Trimethyl orthobutyrate(43083-12-1)

Safety information for Trimethyl orthobutyrate

Signal word Warning
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H226:Flammable liquids
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Trimethyl orthobutyrate

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