4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate

Base Information

• Chemical Name: 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate
• CAS No.: 115094-79-6
• Molecular Formula: C₃₂H₃₆N₂O₄S₂
• Molecular Weight: 576.781

Synonyms:

Chemical Property of 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate

Chemical Property:

Purity/Quality:

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Technology Process of 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate

There total 4 articles about 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate 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: 51.0%

2,3-Bis(methoxycarbonyl)-7,8-dihydro-5-(methylthio)-7,7-dimethyl-1',3'-dibenzyl-4H-benzothiopyran-4-spiro-2'-imidazolidine (132206-22-5) → Dimethyl 5,6,7,8-tetrahydro-7,7-dimethyl-4,5-dioxo-benzothiopyran-2,3-dicarboxylate (132206-28-1) + Dimethyl 5-(methylthio)-7,7-dimethyl-4-oxo-7,8-dihydro-benzothiopyran-2,3-dicarboxylate (132206-26-9) + Dimethyl 4-methoxy-5-(methylthio)-7,7-dimethyl-benzothiopyran-2,3-dicarboxylate (132206-27-0) + 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate (115094-79-6)

Guidance literature:

With hydrogenchloride; In methanol; for 0.166667h; Product distribution; Heating;

DOI:10.1021/jo00005a043

Reference yield: 13.0%

1,3-Dibenzyl-2-<2-(methyl)thio-4,4-dimethyl-6-thioxo-cyclohex-2-enylidene>imidazolidine + dimethyl acetylenedicarboxylate (762-42-5) → 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate (115094-79-6)

Guidance literature:

silica gel; In dichloromethane;

DOI:10.1021/jo00005a043

Reference yield:

1,3-dibenzyl-2-(4,4-dimethyl-2,5-bisthioxocyclohexylidene)imidazolidine (103681-73-8) → 4--amino>-5-(methylthio)-7H-7,7-dimethylbenzothiopyran-2,3-dicarboxylate (115094-79-6)

Guidance literature:

Multi-step reaction with 3 steps

1: acetone

2: 98 percent / 5percent aq. NaHCO₃ / acetone

3: 13 percent / silica gel / CH₂Cl₂

With sodium hydrogencarbonate; silica gel; In dichloromethane; acetone;

DOI:10.1021/jo00005a043

upstream raw materials:

2,3-Bis(methoxycarbonyl)-7,8-dihydro-5-(methylthio)-7,7-dimethyl-1',3'-dibenzyl-4H-benzothiopyran-4-spiro-2'-imidazolidine

dimethyl acetylenedicarboxylate

1,3-dibenzyl-2-(4,4-dimethyl-2,5-bisthioxocyclohexylidene)imidazolidine

1,3-Dibenzyl-2-(4,4-dimethyl-2-methylsulfanyl-6-thioxo-cyclohex-1-enyl)-4,5-dihydro-3H-imidazol-1-ium; iodide

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