dimethyl-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2,6-naphtalenedicarboxylate

Base Information

Chemical Name:dimethyl-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2,6-naphtalenedicarboxylate
CAS No.:102821-42-1
Molecular Formula:C₂₅H₂₆O₉
Molecular Weight:470.476
Hs Code.:

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

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

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

There total 6 articles about dimethyl-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2,6-naphtalenedicarboxylate 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: 85.0%

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

: 77-78-1
dimethyl sulfate

: 102821-42-1
dimethyl-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2,6-naphtalenedicarboxylate

Guidance literature:: With potassium carbonate; In acetone; for 7h; Heating;
DOI:10.1016/S0040-4020(01)96675-X

Reference yield:

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

: 102821-42-1
dimethyl-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2,6-naphtalenedicarboxylate

Guidance literature:: Multi-step reaction with 6 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

6: 85 percent / potassium carbonate / acetone / 7 h / Heating

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

Reference yield:

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

: 102821-42-1
dimethyl-1,2-dihydro-5,7-dimethoxy-3-<(2,5-dimethoxyphenyl)methylene>-4(2H)-oxo-2,6-naphtalenedicarboxylate

Guidance literature:: Multi-step reaction with 5 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

5: 85 percent / potassium carbonate / acetone / 7 h / Heating

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