2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one

Base Information

• Chemical Name: 2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one
• CAS No.: 1446335-96-1
• Molecular Formula: C₂₃H₂₃N₃O
• Molecular Weight: 357.455

Synonyms:2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one

Chemical Property of 2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one

Chemical Property:

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Technology Process of 2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one

There total 2 articles about 2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one 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: 80.0%

2-benzyl-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one (1446335-57-4) + N,N-dimethyl-formamide dimethyl acetal (4637-24-5) → 2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one (1446335-96-1)

Guidance literature:

In N,N-dimethyl-formamide; at 150 ℃; for 1h; Microwave irradiation;

DOI:10.1016/j.tet.2013.05.083

Reference yield:

3-phenyl-1,5,6,7-tetrahydro-4H-indazol-4-one (96546-38-2) → 2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one (1446335-96-1)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 - 20 °C

1.2: 24 h / 0 - 20 °C

2.1: N,N-dimethyl-formamide / 1 h / 150 °C / Microwave irradiation

With sodium hydride; In N,N-dimethyl-formamide;

DOI:10.1016/j.tet.2013.05.083

Reference yield: 68.0%

2-benzyl-5-[(dimethylamino)methylidene]-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one (1446335-96-1) → 7-benzyl-8-phenyl-5,7-dihydro-4H-[1,2]oxazolo[5,4-e]indazole (1446336-51-1)

Guidance literature:

With hydroxylamine hydrochloride; acetic acid; In methanol; for 0.833333h; Reflux;

DOI:10.1016/j.tet.2013.05.083

upstream raw materials:

2-benzyl-3-phenyl-2,5,6,7-tetrahydro-4H-indazol-4-one

N,N-dimethyl-formamide dimethyl acetal

3-phenyl-1,5,6,7-tetrahydro-4H-indazol-4-one

Downstream raw materials:

7-benzyl-8-phenyl-5,7-dihydro-4H-[1,2]oxazolo[5,4-e]indazole

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