21983-72-2

Basic information

• Product Name: 3,3-Dimethoxybutan-2-one
• Synonyms: 3,3-DIMETHOXY-2-BUTANONE;3,3-Dimethoxybutan-2-one;2-Butanone, 3,3-dimethoxy-;3,5-dimethoxy-2-butanone;3,3-Dimethoxy-2-butanone,98%;3,3-Dimethoxybutan-2-one 98+%;3,3-DiMethoxy-2-butanon;3,3-Dimethoxy-2-oxobutane
• CAS NO: 21983-72-2
• Molecular Formula: C₆H₁₂O₃
• Molecular Weight: 132.16
• Product Categories: Aliphatics;C3 to C6;Carbonyl Compounds;Ketones;Building Blocks;C3 to C6;Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks
• Mol File: 21983-72-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 145-146 °C(lit.)
• Flash Point: 113 °F
• Appearance: Clear colorless liquid
• Density: 0.987 g/mL at 25 °C(lit.)
• Vapor Pressure: 4.85mmHg at 25°C
• Refractive Index: n20/D 1.407(lit.)
• Storage Temp.: Inert atmosphere,Room Temperature
• CAS DataBase Reference: 3,3-Dimethoxybutan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-Dimethoxybutan-2-one(21983-72-2)
• EPA Substance Registry System: 3,3-Dimethoxybutan-2-one(21983-72-2)

Safety Data

• Hazard Codes: Xi,F
• Statements: 10
• Safety Statements: 16
• RIDADR: UN 1224 3/PG 3
• WGK Germany: 3
• HazardClass: 3.2
• PackingGroup: III
• Hazardous Substances Data: 21983-72-2(Hazardous Substances Data)

Usage

Chemical Properties

Clear colorless liquid

Uses

Different sources of media describe the Uses of 21983-72-2 differently. You can refer to the following data:
1. 3,3-Dimethoxybutan-2-one is used in preparation of 3-acetylpyrazole.
2. 3,3-Dimethoxy-2-butanone may be used as starting reagent in the synthesis of 6-acety1-l,2-dihydro-2-oxo-3-pyridinecarboxylic acid. It may be used in the preparation of 4,4-dimethoxy-3-oxo-1-phenyl-1-pentene.

General Description

3,3-Dimethoxy-2-butanone is a biacetyl monoketal.

InChI:InChI=1/C6H12O3/c1-5(7)6(2,8-3)9-4/h1-4H3

Upstream product

• 2648-57-9 3,3-Dichloro-2-butanone 
• 124-41-4 sodium methylate 

Downstream Products

• 3292-74-8 3,3-dimethoxy-2-[4-methyl-5-(2-trityloxy-ethyl)-thiazol-2-yl]-butan-2-ol 
• 106157-94-2 5-Dimethylamino-3-oxo-4-penten-2-one-3-dimethylketal 
• 181586-74-3 (2R,3R,5R,6R)-5,6-dimethoxy-5,6-dimethyl[1,4]dioxane-2,3-dicarboxylic acid dimethyl ester 
• 181785-03-5 (2R,3R,5S,6S)-5,6-dimethoxy-5,6-dimethyl[1,4]dioxane-2,3-dicarboxylic acid dimethyl ester 
• 123920-04-7 5-Hydroxy-2,2-dimethoxy-5-(2,2,5-trimethyl-1,3-dioxolan-4-yl)pentan-3-one 
• 51671-29-5 1-benzyl-4,5-dimethyl-1H-1,2,3-triazole 
• 521092-35-3 4-(1,1-dimethoxy-ethyl)-2-methylsulfanyl-pyrimidine 
• 3609-53-8 methyl 4-acetylbenzoate 
• 123920-07-0 5-Hydroxy-2,2-dimethoxy-5-(2,2,4-trimethyl-1,3dioxolan-4-yl)pentan-3-one 
• 37622-89-2 5-acetyl-1H-pyrazole-3-carboxylic acid ethyl ester 
• 106157-94-2 1-(dimethylamino)-4,4-dimethoxypent-1-en-3-one 
• 173371-57-8 (2R,3R,5S,6S)-2,3-dimethoxy-2,3-dimethyl-5,6-bis(((toluene-4-sulfonyl)oxy)methyl)<1,4>dioxane 

Relevant articles and documents

Halogenated Epoxides. 61. Reactions of Selected Chlorooxiranes with Sodium Methoxide: About the Question of Acetylenic and Allenic Epoxides as Intermediates

Reactions of sodium methoxide with five chlorooxiranes (1, 3, 11, 18, and 19) and with the corresponding isomeric chlorocarbonyl compounds have been examined.In two cases the chlorooxirane and the corresponding chlorocarbonyl compound afforded the same products, however, in different yields.In the other cases the chlorooxiranes and the corresponding chlorocarbonyl compounds gave different products.It is concluded that chlorocarbonyl compounds are not formed to a large extent as intermediates.In the reactions of two chlorooxiranes (18 and 19) with sodium methoxide, acetylenic and allenic epoxides may be invoked as transient intermediates.