38872-49-0

Basic information

• Product Name: 1-Acetoxy-4-chloro-3-methyl-2-butene
• Synonyms: 1-Acetoxy-4-chloro-3-methyl-2-butene
• CAS NO: 38872-49-0
• Molecular Formula: C₇H₁₁ClO₂
• Molecular Weight: 162.61
• Mol File: 38872-49-0.mol
• Article Data: 11

Chemical Properties

• Boiling Point: 216.8 °C at 760 mmHg
• Flash Point: 94 °C
• Appearance: /
• Density: 1.067
• Vapor Pressure: 0.137mmHg at 25°C
• Refractive Index: 1.45
• CAS DataBase Reference: 1-Acetoxy-4-chloro-3-methyl-2-butene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Acetoxy-4-chloro-3-methyl-2-butene(38872-49-0)
• EPA Substance Registry System: 1-Acetoxy-4-chloro-3-methyl-2-butene(38872-49-0)

Safety Data

• Hazardous Substances Data: 38872-49-0(Hazardous Substances Data)

Usage

General Description

1-Acetoxy-4-chloro-3-methyl-2-butene, also known as vinyl chloroacetate, is a chemical compound with the molecular formula C6H9ClO2. It is a clear and colorless liquid with a pungent odor, and is highly flammable. 1-Acetoxy-4-chloro-3-methyl-2-butene is commonly used in organic synthesis as an intermediate for the production of pharmaceuticals, agrochemicals, and other specialty chemicals. It is also used as a building block in the production of polymers. However, it is important to handle this chemical with caution as it can cause irritation to the skin, eyes, and respiratory system upon contact or inhalation. Additionally, it is considered hazardous to the environment and should be disposed of properly to prevent pollution and harm to aquatic life.

InChI:InChI=1/C7H11ClO2/c1-6(5-8)3-4-10-7(2)9/h3H,4-5H2,1-2H3

Upstream product

• 64-19-7 acetic acid 
• 78-79-5 isoprene 
• 507-40-4 tert-butylhypochlorite 
• 20677-65-0 Acetoxymethyl-triphenyl-phosphoniumchlorid 
• 78-95-5 chloroacetone 
• 108-24-7 acetic anhydride 
• 2873-92-9 4-chloro-3-methylbut-2-en-1-ol 
• 7437-62-9 1-chloro-2-methyl-3-buten-2-ol 
• 29843-58-1 1,4-dichloro-3-methyl-2-butene 
• 127-08-2 potassium acetate 
• 23451-76-5 3-Hydroxy-3-methyl-4-phenylmercapto-buten 
• 63753-47-9 1-Benzenesulfinyl-2-methyl-but-3-en-2-ol 
• 763-32-6 2-methyl-1-buten-4-ol 
• 5205-07-2 3-methyl-3-buten-1-yl acetate 

Downstream Products

• 58626-66-7 5-(3-oxo-2,5,5-trimethyl-cyclopent-1-en-1-yl)-5-phenylsulphonyl-3-methylpent 2-en-1-ol 
• 87611-79-8 Acetic acid (E)-4-benzylamino-3-methyl-but-2-enyl ester 
• 26586-02-7 (E)-4-acetoxy-2-methylcrotonaldehyde 
• 59830-31-8 1-phenylsulfonyl-2-methyl-4-acetoxy-but-2-ene 
• 89345-64-2 phenylsulfonyl-1 methyl-2 acetoxy-4 butene-2 Z 
• 95199-58-9 Acetic acid 2-benzenesulfonyl-3-methyl-but-3-enyl ester 
• 53588-13-9 Phenylsulfonyl-4-methyl-3-acetoxy-1-buten-2 
• 53588-14-0 Acetic acid (E)-4-benzenesulfonyl-2-methyl-but-2-enyl ester 
• 26157-20-0 2-methyl-1-(phenylsulfonyl)-1,3-butadiene 
• 187268-44-6 (3E,7E)-2-((E)-4-Acetoxy-2-methyl-but-2-enyl)-2-benzenesulfonyl-4,8,12-trimethyl-trideca-3,7,11-trienoic acid methyl ester 
• 53170-97-1 (E)-4-chloro-3-methyl-2-buten-1-ol 
• 14918-80-0 3-methyl-4-oxobut-2-enyl acetate 

Relevant articles and documents

Preparation method of 4-acetoxy-2-methyl-2-butenal

The invention discloses a preparation method of 4-acetoxy-2-methyl-2-butenal, which takes salifying and wittig reactions as a core and methanol which is cheap and easy to obtain as a reaction initial raw material. The invention provides a new reaction route, the reaction steps are simple, the reaction conditions are mild, and the product yield is high.

Preparation method of 1-halogenated-2-methyl-4-substituted carbonyloxy-2-butene

The invention provides a preparation method of 1-halogenated-2-methyl-4-substituted carbonyloxy-2-butene. According to the method, 2-methyl-4-hydroxy-1-butene and an acylation reagent are subjected toan acylation reaction under the action of a catalyst to prepare 2-methyl-4-substituted carbonyloxy-1-butene, and then the 2-methyl-4-substituted carbonyloxy-1-butene and halogen are subjected to an addition reaction and an alkali elimination reaction to prepare 1-halogenated-2-methyl-4-substituted carbonyloxy-2-butene. The method has the advantages of cheap and accessible raw materials and low product cost; the process flow is simple and convenient, the reaction conditions are easy to realize, the operation is safe, simple and convenient, the wastewater yield is low, and the method is green and environment-friendly; and the method also has the advantages of stable reaction intermediate product, proper reaction activity, high reaction selectivity, few side reactions and high target productyield and purity, and is suitable for green industrial production.

A process for preparing 4 - acetoxy -2 - methyl -2 - butenal new method

The present invention provides a process for preparing 4 - acetoxy - 2 - methyl - 2 - butenal new method. Comprises the following steps: 1, fed with methanol reaction to generate acetal thing (I); 2, acetal thing (I) under the catalysis of the copper salt with the peroxide tert-butyl acetate is generated by the reaction (II) shrinks the aldehydo-ester; 3, shrinks the aldehydo-ester (II) hydrolyzed under acidic conditions to obtain 4 - acetoxy - 2 - methyl - 2 - butenal. The method of starting material fed in cheap and easy to obtain, the process route is short, three wastes, synthetic route economic and effective.