3775-29-9

Basic information

• Product Name: 2-methylenepropane-1,3-diyl diacetate
• Synonyms: 2-methylenepropane-1,3-diyl diacetate;1,3-BIS (ACETOXYISOBUTENE);1,3-Diacetoxy-2-methylenepropane;Bisacetic acid 2-methylene-1,3-propanediyl ester;Diacetic acid 2-methylene-1,3-propanediyl ester;Diacetic acid 2-methylenepropane-1,3-diyl ester;2-(acetyloxymethyl)prop-2-enyl acetate;2-(acetyloxymethyl)prop-2-enyl ethanoate
• CAS NO: 3775-29-9
• Molecular Formula: C₈H₁₂O₄
• Molecular Weight: 172.17848
• EINECS: 223-225-8
• Mol File: 3775-29-9.mol
• Article Data: 14

Chemical Properties

• Boiling Point: 225.3°Cat760mmHg
• Flash Point: 104.8°C
• Appearance: /
• Density: 1.059g/cm³
• Vapor Pressure: 0.0871mmHg at 25°C
• Refractive Index: 1.433
• Storage Temp.: Sealed in dry,Room Temperature
• Water Solubility: 28.9g/L at 20℃
• CAS DataBase Reference: 2-methylenepropane-1,3-diyl diacetate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-methylenepropane-1,3-diyl diacetate(3775-29-9)
• EPA Substance Registry System: 2-methylenepropane-1,3-diyl diacetate(3775-29-9)

Safety Data

• Hazardous Substances Data: 3775-29-9(Hazardous Substances Data)

Usage

General Description

2-Methylenepropane-1,3-diyl diacetate is a chemical compound with the molecular formula C7H12O4. It is also known as diacetoxymethylenemethane and is commonly used as a solvent or a raw material in organic synthesis. It is a clear liquid with a fruity odor and is flammable. This chemical is primarily used in the production of pharmaceuticals, flavors, and fragrances. It is important to handle and store this chemical with care, as it can be harmful if swallowed, inhaled, or if it comes into contact with the skin. Proper protective equipment and handling procedures should be followed when working with 2-methylenepropane-1,3-diyl diacetate to ensure safety.

InChI:InChI=1/C8H12O4/c1-6(4-11-7(2)9)5-12-8(3)10/h1,4-5H2,2-3H3

Upstream product

• 52813-48-6 3-bromo-2,2-bis(bromomethyl)propanoic acid 
• 127-08-2 potassium acetate 
• 127-09-3 sodium acetate 
• 3513-81-3 2-(Hydroxymethyl)allyl alcohol 
• 108-24-7 acetic anhydride 
• 52031-17-1 2,2-(dibromomethyl)-2-bromopropanoic acid chloride 
• 64-19-7 acetic acid 
• 1871-57-4 2-chloromethyl-3-chloroprop-1-ene 
• 64-17-5 ethanol 
• 79-22-1 methyl chloroformate 
• 548482-49-1 5-methylene-1,3,2-dioxathiane 2-oxide 
• 108-05-4 vinyl acetate 
• 105-70-4 2-hydroxypropane-1,3-diyl diacetate 
• 6946-10-7 1,3-diacetoxyacetone 

Downstream Products

• 115975-05-8 5-Methylene-2-phenyl-5,6-dihydro-4H-pyran-3-carboxylic acid methyl ester 
• 141258-61-9 1-(2-Acetoxymethyl-allyl)-5-methyl-2-oxo-cyclohexanecarboxylic acid methyl ester 
• 3513-81-3 2-(Hydroxymethyl)allyl alcohol 
• 115975-08-1 (5-Methylene-2-phenyl-5,6-dihydro-4H-pyran-3-yl)-phenyl-methanone 
• 115975-07-0 1-(2-Methyl-5-methylene-5,6-dihydro-4H-pyran-3-yl)-ethanone 
• 196715-62-5 Acetic acid 4-acetyl-4-methyl-2-methylene-5-oxo-hexyl ester 
• 216302-79-3 2-Acetyl-2-methyl-4-methylene-cyclohexanone 
• 258522-19-9 (1R,9R)-11-Methylene-13-oxo-tricyclo[7.3.1.0^2,7]trideca-2,4,6-triene-1-carboxylic acid (1R,2S)-2-phenyl-cyclohexyl ester 
• 258522-25-7 (5S)-7,8,9,10-tetrahydro-2-methoxy-7-methylene-11-oxo-5,9-methanocycloocta[b]pyridine-5(6H)carboxylic acid, (1R,2S)-2-phenylcyclohexyl ester 
• 19560-64-6 3-methylene-3,4-dihydro-2H-benzo[b][1,4]dioxepine 
• 2163-42-0 2-methyl-1.3-propanediol 

Relevant articles and documents

Method for preparing 2-methyl-1, 3-propylene glycol from isobutene

The invention discloses a method for preparing 2-methyl-1, 3-propylene glycol from isobutene. The method comprises the following steps: mixing isobutene with acetic acid and oxygen, and carrying out an oxyacetylation reaction under the action of a supported palladium-molybdenum catalyst to obtain 2-methylene propane-1, 3-diacetoxy, namely a compound (C); carrying out transesterification on the compound (C) under the action of a basic catalyst to obtain 2-methylene-1, 3-propylene glycol, namely a compound (D); and carrying out hydrogenation reaction on the compound (D) to obtain the 2-methyl-1,3-propylene glycol. According to the method, the 2-methyl-1, 3-propylene glycol can be generated with high selectivity, and the whole process is high in atom utilization rate, environmentally friendly and suitable for large-scale industrial application.

METHOD FOR PRODUCING BIS-ACYLOXYLATED EXOMETHYLENE COMPOUND

A method of producing a bis-acyloxylated exomethylene compound represented by general formula (III), including reacting a monoacyloxylated exomethylene compound represented by general formula (I), a carboxylic acid represented by general formula (II), and oxygen in a liquid phase in the presence of a catalyst and optionally a solvent:

Synthesis of gem-Difluoromethylene Containing Cycloalkenes via the Ring-Opening Reaction of gem-Difluorocyclopropanes and Subsequent RCM Reaction

The radical-type ring-opening reaction of gem-difluorocyclopropanes and subsequent regioselective monoepoxidation of the products were demonstrated. Introduction of a vinyl or allyl group to the epoxide produced the diene derivatives that were subjected to the ring closing metathesis reaction to furnish the gem-difluoromethylene containing cyclopentene, cycloheptene, and cyclooctene derivatives in good to excellent yields.