1,2-Dichloro-4,5-dimethylbenzene

Base Information

• Chemical Name: 1,2-Dichloro-4,5-dimethylbenzene
• CAS No.: 20824-80-0
• Molecular Formula: C8H8Cl2
• Molecular Weight: 175.058
• DSSTox Substance ID: DTXSID60533985
• Nikkaji Number: J31.747K
• Wikidata: Q82407571
• Mol file: 20824-80-0.mol

Synonyms:1,2-Dichloro-4,5-dimethylbenzene;20824-80-0;4,5-Dichlor-o-xylol;Benzene, 1,2-dichloro-4,5-dimethyl-;SCHEMBL172591;DTXSID60533985;RLFZGSWNWDLFOM-UHFFFAOYSA-N;MFCD24217804;AKOS024463817;Benzene, 1,2-dichloro-4,5-dimethyl;SY310769

Chemical Property of 1,2-Dichloro-4,5-dimethylbenzene

Chemical Property:

• Melting Point: 76 °C
• Boiling Point: 237.4±35.0 °C(Predicted)
• PSA: 0.00000
• Density: 1.199±0.06 g/cm3(Predicted)
• LogP: 3.61020
• XLogP3: 3.9
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 174.0003056
• Heavy Atom Count: 10
• Complexity: 99.8

Purity/Quality:

99%, ^*data from raw suppliers

1,2-Dichloro-4,5-dimethylbenzene 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CC(=C(C=C1C)Cl)Cl

Technology Process of 1,2-Dichloro-4,5-dimethylbenzene

There total 7 articles about 1,2-Dichloro-4,5-dimethylbenzene 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:

o-xylene (95-47-6) → 2,4-dimethylchlorobenzene (95-66-9) + 1-chloro-3,5-dimethylbenzene (556-97-8) + 2-chloro-1,4-dimethyl-benzene (95-72-7) + 2,6-dimethyl-1-chlorobenzene (6781-98-2) + 4-chloro-1,2-dimethylbenzene (615-60-1) + 3-chloro-o-xylene (608-23-1) + 1,2-dichloro-4,5-dimethyl-benzene (20824-80-0) + 1,2-dichloro-3,4-dimethyl-benzene (68266-67-1) + 2-methyl-5-chlorobenzyl chloride (34060-72-5) + 1,4-dichloro-2,3-dimethyl-benzene (52331-02-9) + 3,5-dichloro-o-xylene (70172-92-8) + 1-chloromethyl-2-methylbenzene (552-45-4) + alpha,2-dichloro-6-methyltoluene (55676-90-9)

Guidance literature:

With chlorine; the fluorine-containing K-L-type zeolite; In 1,2-dichloro-ethane; at 80 ℃; for 1.75 - 3.66667h; Product distribution / selectivity;

Reference yield:

4-amino-o-xylene (95-64-7) → 1,2-dichloro-4,5-dimethyl-benzene (20824-80-0)

Guidance literature:

Multi-step reaction with 2 steps

1: aqueous HCl / Diazotization_.Behandlung der Diazoniumsalz-Loesung mit CuCl in der Waerme

2: iron-turnings / -10 °C / Einleiten von Chlor

With hydrogenchloride; iron;

DOI:10.1093/oxfordjournals.rpd.a006659

Reference yield:

o-xylene (95-47-6) → 1,2-dichloro-4,5-dimethyl-benzene (20824-80-0)

Guidance literature:

With chlorine;

DOI:10.1021/ja01104a503

upstream raw materials:

o-xylene

4-chloro-1,2-dimethylbenzene

2-chloro-4,5-dimethylaniline

chlorine

Downstream raw materials:

1,4-dibromo-2,3-dichloro-5,6-dimethyl-benzene

4,5-dichlorobenzene-1,2-dicarbaldehyde

4,5-dichlorophthalic acid

1,2-bis(dibromomethyl)-4,5-dichlorobenzene

Refernces

• 1、 -. "PROCESS FOR HALOGENATION OF BENZENE AND BENZENE DERIVATIVES". Page/Page column 23-24. . Retrieved 2008/06/13.