2-Chloro-3-methylbuta-1,3-diene

Base Information

• Chemical Name: 2-Chloro-3-methylbuta-1,3-diene
• CAS No.: 1809-02-5
• Molecular Formula: C5H7Cl
• Molecular Weight: 102.564
• DSSTox Substance ID: DTXSID20499932
• Nikkaji Number: J797.855C
• Wikidata: Q82351178
• Mol file: 1809-02-5.mol

Synonyms:2-chloro-3-methylbuta-1,3-diene;1809-02-5;2-chloro-3-methyl-buta-1,3-diene;2-chloro-3-methyl-1,3-butadiene;1,3-Butadiene, 2-chloro-3-methyl-;SCHEMBL2543194;DTXSID20499932;PKVRTDNAPQGMGP-UHFFFAOYSA-N

Chemical Property of 2-Chloro-3-methylbuta-1,3-diene

Chemical Property:

• XLogP3: 2.9
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 1
• Exact Mass: 102.0236279
• Heavy Atom Count: 6
• Complexity: 81.9

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(=C)C(=C)Cl

Technology Process of 2-Chloro-3-methylbuta-1,3-diene

There total 2 articles about 2-Chloro-3-methylbuta-1,3-diene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 50.0%

1,1-dibromo-2-chloromethyl-2-methylcyclopropane (71600-39-0) → 2-chloro-3-methylbutadiene (1809-02-5) + trans-1-bromo-3-methylbuta-1,3-diene (93080-13-8) + 1-Bromo-3-methyl-bicyclo[1.1.0]butane (93080-12-7)

Guidance literature:

With methyllithium; In diethyl ether; at -40 ℃;

DOI:10.1016/S0040-4039(01)81317-4

Reference yield:

2-methylbut-1-en-3-yne (78-80-8) → 3-chloro-3-methylbut-1-yne (1111-97-3) + 2,3-Dichloro-3-methyl-1-butene (29871-32-7) + 2-chloro-3-methylbutadiene (1809-02-5) + 4-chloro-3-methyl-1,2-butadiene (76397-24-5) + (E)-1,3-dichloro-2-methyl-2-butene (52842-49-6) + (Z)-1,3-dichloro-2-methyl-2-butene (52842-50-9)

Guidance literature:

With hydrogenchloride; at 26 ℃; for 72h; Product distribution; Mechanism; variat. of the rk.-time and the conc. of HCl;

Reference yield: 39.0%

methanol (67-56-1) + 2-chloro-3-methylbutadiene (1809-02-5) → Dimethoxymethane (109-87-5) + acetic acid methyl ester (79-20-9) + methacrylic acid methyl ester (80-62-6,114512-63-9,143476-91-9,25188-98-1,9011-14-7) + 2-Chlor-3,3-dimethoxy-1-buten (108365-85-1)

Guidance literature:

With ozone; at -78 ℃; Further byproducts given. Yields of byproduct given;

upstream raw materials:

1,1-dibromo-2-chloromethyl-2-methylcyclopropane

2-methylbut-1-en-3-yne

Downstream raw materials:

4-chloro-1,3-dimethyl-cyclohex-3-enecarboxylic acid methyl ester

4-chloro-5-methyl-cyclohexa-1,4-diene-1,2-dicarboxylic acid dimethyl ester

4,4,5,5-Tetracyan-1-chlor-2-methyl-cyclohexen

pyruvic acid methyl ester