3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester

Base Information

• Chemical Name: 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester
• CAS No.: 73997-09-8
• Molecular Formula: C₁₃H₁₁N₅O₃
• Molecular Weight: 285.262

Synonyms:3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester

Chemical Property of 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester

Chemical Property:

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Technology Process of 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester

There total 3 articles about 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester 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: 70.0%

phenyl isocyanate (103-71-9) + ethyl 5-diazopyrazole-4-carboxylate (64781-75-5) → 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester (73997-09-8)

Guidance literature:

In ethyl acetate; at -10 - 20 ℃; Darkness;

DOI:10.1007/s11172-016-1522-9

Reference yield:

phenyl isocyanate (103-71-9) + ethyl 5-amino-1H-pyrazole-4-carboxylate (1260243-04-6,6994-25-8) → 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester (73997-09-8)

Guidance literature:

ethyl 5-amino-1H-pyrazole-4-carboxylate; With hydrogenchloride; sodium nitrite; In water; at 0 - 5 ℃;

phenyl isocyanate; With sodium carbonate; In dichloromethane; water; at 0 - 20 ℃; for 9h; pH=7 - 8;

DOI:10.1021/cc900063y

Reference yield:

→ 3,4-Dihydro-4-oxo-3-phenyl-pyrazolo<5,1-d>-1,2,3,5-tetrazin-8-carbonsaeure-ethylester (73997-09-8)

Guidance literature:

Diazopyrazol 1E, Phenylisocyanat;

DOI:10.1016/S0040-4039(01)86559-X

upstream raw materials:

phenyl isocyanate

ethyl 5-amino-1H-pyrazole-4-carboxylate

ethyl 5-diazopyrazole-4-carboxylate

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