5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one

Base Information

• Chemical Name: 5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one
• CAS No.: 1346698-82-5
• Molecular Formula: C₁₉H₁₇N₃O₃
• Molecular Weight: 335.362

Synonyms:5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one

Chemical Property of 5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one

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Technology Process of 5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one

There total 1 articles about 5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-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: 91.8%

6-[2-(4-benzyloxy-phenyl)benzoxazol-6-yl]-5-ethyl-4,5-dihydro-2H-pyridazin-3-one (1346698-78-9) → 5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one (1346698-82-5)

Guidance literature:

With hydrogen; palladium 10% on activated carbon; In methanol; at 20 ℃; for 2.5h; under 2587.76 Torr;

Reference yield: 75.3%

N,N-phenylbistrifluoromethane-sulfonimide (37595-74-7) + 5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one (1346698-82-5) → 4-[6-(4-ethyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)benzoxazol-2-yl]phenyl trifluoro-methanesulphonate (1346701-55-0)

Guidance literature:

With triethylamine; In N,N-dimethyl-formamide; at 0 - 20 ℃; Product distribution / selectivity;

Reference yield: 64.6%

5-ethyl-6-[2-(4-hydroxy-phenyl)benzoxazol-6-yl]-4,5-dihydro-2H-pyridazin-3-one (1346698-82-5) + chloroacetone (78-95-5) → 5-ethyl-6-{2-[4-(2-oxo-propoxy)phenyl]benzoxazol-6-yl}-4,5-dihydro-2H-pyridazin-3-one (1346701-54-9)

Guidance literature:

With potassium carbonate; potassium iodide; In acetone; at 60 ℃;

upstream raw materials:

6-[2-(4-benzyloxy-phenyl)benzoxazol-6-yl]-5-ethyl-4,5-dihydro-2H-pyridazin-3-one

Downstream raw materials:

5-ethyl-6-{2-[4-(2-oxo-propoxy)phenyl]benzoxazol-6-yl}-4,5-dihydro-2H-pyridazin-3-one

4-[6-(4-ethyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)benzoxazol-2-yl]phenyl trifluoro-methanesulphonate

6-{2-[4-(1,1-dimethyl-2-pyrrolidin-1-yl-ethoxy)phenyl]benzoxazol-6-yl}-5-ethyl-4,5-dihydro-2H-pyridazin-3-one

6-{2-[4-(2,2-dimethoxy-ethoxy)phenyl]benzoxazol-6-yl}-5-ethyl-4,5-dihydro-2H-pyridazin-3-one

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