7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

Base Information

Chemical Name:7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid
CAS No.:103830-24-6
Molecular Formula:C₁₇H₁₂Cl₂O₅
Molecular Weight:367.185
Hs Code.:

Synonyms:7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

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Chemical Property of 7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

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Technology Process of 7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

There total 8 articles about 7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid 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: 76.8%

: 103829-92-1
(7,8-Dichloro-2-hydroxymethyl-2,3-dihydro-benzo[1,4]dioxin-5-yl)-o-tolyl-methanone

: 103830-24-6
7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

Guidance literature:: With sulfuric acid; chromic acid; In acetone; Ambient temperature;
DOI:10.1248/cpb.36.3404

Reference yield: 76.8%

: 103829-88-5
(4-Chloro-phenyl)-(7,8-dichloro-2-hydroxymethyl-2,3-dihydro-benzo[1,4]dioxin-5-yl)-methanone

: 103830-24-6
7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

Guidance literature:: With sulfuric acid; chromic acid; In acetone; Ambient temperature;
DOI:10.1248/cpb.36.3404

Reference yield:

: 3978-67-4
3,4-dichloro-1,2-benzenediol

: 103830-24-6
7,8-Dichloro-5-(2-methyl-benzoyl)-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid

Guidance literature:: Multi-step reaction with 6 steps

1: 40.1 percent / NaH / dimethylformamide / 2 h / 100 °C

2: 79 percent / NaH / dimethylformamide / 6 h / 80 °C

3: 100 percent / H₂ / 5percent Pd-C / ethyl acetate / 0.33 h

4: 76.7 percent / 2 N NaOH / ethanol / 0.08 h / 80 °C

5: 1.) AlCl₃, 2.) 2 N NaOH / 1.) CH₂Cl₂, r.t., 30 min, 90 deg C, 2.5 h, 2.) EtOH, reflux, 30 min

6: 76.8 percent / 8 N chromic acid/sulfuric acid (Jones) / acetone / Ambient temperature

With sodium hydroxide; aluminium trichloride; sulfuric acid; hydrogen; chromic acid; sodium hydride; palladium on activated charcoal; In ethanol; ethyl acetate; N,N-dimethyl-formamide; acetone;
DOI:10.1248/cpb.36.3404