8-hydroxy-1-methylbenzindazole-4,9-dione

Base Information

• Chemical Name: 8-hydroxy-1-methylbenzindazole-4,9-dione
• CAS No.: 97308-86-6
• Molecular Formula: C₁₂H₈N₂O₃
• Molecular Weight: 228.207

Synonyms:

Chemical Property of 8-hydroxy-1-methylbenzindazole-4,9-dione

Chemical Property:

Purity/Quality:

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Technology Process of 8-hydroxy-1-methylbenzindazole-4,9-dione

There total 2 articles about 8-hydroxy-1-methylbenzindazole-4,9-dione 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: 86.0%

8,8'-dimethoxy-3,3'-dimethyl[2,2'-binaphthalene]-1,1',4,4'-tetrone (54215-49-5) → 8,8'-dihydroxy-3,3'-dimethyl[2,2']binaphthalenyl-1,4,1',4'-tetraone (34341-27-0) + 8-hydroxy-1-methylbenzindazole-4,9-dione (97308-86-6)

Guidance literature:

With aluminium trichloride; In chloroform; ultrasound;

DOI:10.1002/jlac.198319830215

Reference yield:

diazomethane (186581-53-3,908094-01-9,334-88-3) + 8,8'-dihydroxy[2,2']binaphthalenyl-1,4,1',4'-tetraone (61836-43-9) → 8,8'-dihydroxy-3,3'-dimethyl[2,2']binaphthalenyl-1,4,1',4'-tetraone (34341-27-0) + 8-Hydroxy-1H-benzo[f]indazole-4,9-dione + (1aR,7aS)-6-Hydroxy-7a-(8-hydroxy-3-methyl-1,4-dioxo-1,4-dihydro-naphthalen-2-yl)-1a,7a-dihydro-1H-cyclopropa[b]naphthalene-2,7-dione + 8-hydroxy-1-methylbenzindazole-4,9-dione (97308-86-6)

Guidance literature:

Yield given. Multistep reaction; 1.) ether, toluene, room temp., 5 min; 2.) toluene, 1h, reflux;

DOI:10.1002/jlac.198319830215

upstream raw materials:

diazomethane

8,8'-dihydroxy[2,2']binaphthalenyl-1,4,1',4'-tetraone

8,8'-dimethoxy-3,3'-dimethyl[2,2'-binaphthalene]-1,1',4,4'-tetrone

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