5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

Base Information

Chemical Name:5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one
CAS No.:1382783-96-1
Molecular Formula:C₂₀H₁₈FN₃O₂
Molecular Weight:351.38
Hs Code.:

Synonyms:5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

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Chemical Property of 5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

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Technology Process of 5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

There total 6 articles about 5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-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: 38.0%

: 106-44-5
p-cresol

: 1382786-02-8
5-(4-fluorophenyl)-2-(hydroxymethyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

: 1382783-96-1
5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

Guidance literature:: With di-tert-butyl-diazodicarboxylate; triphenylphosphine; In tetrahydrofuran; at 0 - 130 ℃;

Reference yield:

: 37687-24-4
diethyl 1H-pyrazole-3,5-dicarboxylate

: 1382783-96-1
5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

Guidance literature:: Multi-step reaction with 6 steps

1: caesium carbonate / N,N-dimethyl-formamide / 16 h / 20 °C

2: hydrogenchloride / 1,4-dioxane / 1.5 h / 20 °C

3: sodium carbonate; water / 1,4-dioxane / 3 h / 20 °C

4: potassium carbonate; copper(l) iodide; N,N`-dimethylethylenediamine / toluene / 16 h / 130 °C

5: sodium tetrahydroborate / tetrahydrofuran; methanol / 2 h / 0 - 20 °C

6: triphenylphosphine; di-tert-butyl-diazodicarboxylate / tetrahydrofuran / 16 h / 0 - 20 °C

With hydrogenchloride; sodium tetrahydroborate; copper(l) iodide; di-tert-butyl-diazodicarboxylate; water; sodium carbonate; potassium carbonate; caesium carbonate; triphenylphosphine; N,N`-dimethylethylenediamine; In tetrahydrofuran; 1,4-dioxane; methanol; N,N-dimethyl-formamide; toluene;
DOI:10.1016/j.bmcl.2015.11.098

Reference yield:

: 951626-95-2
ethyl 4-oxo-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-2-carboxylate

: 1382783-96-1
5-(4-fluorophenyl)-2-(p-tolyloxymethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

Guidance literature:: Multi-step reaction with 3 steps

1: potassium carbonate; copper(l) iodide; N,N`-dimethylethylenediamine / toluene / 16 h / 130 °C

2: sodium tetrahydroborate / tetrahydrofuran; methanol / 2 h / 0 - 20 °C

3: triphenylphosphine; di-tert-butyl-diazodicarboxylate / tetrahydrofuran / 16 h / 0 - 20 °C

With sodium tetrahydroborate; copper(l) iodide; di-tert-butyl-diazodicarboxylate; potassium carbonate; triphenylphosphine; N,N`-dimethylethylenediamine; In tetrahydrofuran; methanol; toluene;
DOI:10.1016/j.bmcl.2015.11.098