6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

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Chemical Name:6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid
CAS No.:102847-86-9
Molecular Formula:C₂₄H₂₄O₉
Molecular Weight:456.449
Hs Code.:

Synonyms:6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

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Chemical Property of 6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

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Technology Process of 6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

There total 5 articles about 6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic 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: 43.0%

: 93-02-7
2,5-dimethoxybenzaldehyde

: 102821-39-6
6-carbomethoxy-5,7-dimethoxy-4-oxo-1,2,3,4-tetrahydro-2-naphtoic acid

: 102821-41-0
5,7-Dimethoxy-4-oxo-1,2,3,4-tetrahydro-naphthalene-2,6-dicarboxylic acid

: 102847-86-9
6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

Guidance literature:: With potassium hydroxide; In methanol; at 20 - 25 ℃; for 120h;
DOI:10.1016/S0040-4020(01)96675-X

Reference yield:

: 54130-89-1
2,6-dimethoxy-4-methyl-benzoic acid methyl ester

: 102847-86-9
6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

Guidance literature:: Multi-step reaction with 5 steps

1: 61.4 percent / N-bromosuccinimide, di-t-butyl peroxyde / CCl₄ / 30 h / Heating

2: 1) NaH / 1) toluene, 0 deg C, 20 min, 2) toluene, r.t., 48 h

3: 83.3 percent / KOH / methanol; H₂O / 24 h / Ambient temperature

4: 90 percent / polyphosphoric acid / 3 h / 60 °C

5: 43 percent / NaOH / methanol / 120 h / 20 - 25 °C

With potassium hydroxide; sodium hydroxide; N-Bromosuccinimide; PPA; di-tert-butyl peroxide; sodium hydride; In methanol; tetrachloromethane; water;
DOI:10.1016/S0040-4020(01)96675-X

Reference yield:

: 102821-33-0
methyl-4-bromomethyl-2,6-dimethoxy benzoate

: 102847-86-9
6-carbomethoxy-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2-naphtalenecarboxylic acid

Guidance literature:: Multi-step reaction with 4 steps

1: 1) NaH / 1) toluene, 0 deg C, 20 min, 2) toluene, r.t., 48 h

2: 83.3 percent / KOH / methanol; H₂O / 24 h / Ambient temperature

3: 90 percent / polyphosphoric acid / 3 h / 60 °C

4: 43 percent / NaOH / methanol / 120 h / 20 - 25 °C

With potassium hydroxide; sodium hydroxide; PPA; sodium hydride; In methanol; water;
DOI:10.1016/S0040-4020(01)96675-X