5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione

Base Information

• Chemical Name: 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione
• CAS No.: 293322-59-5
• Molecular Formula: C₂₄H₁₈N₄OS
• Molecular Weight: 410.499

Synonyms:5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione

Chemical Property of 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione

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Technology Process of 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione

There total 3 articles about 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione 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%

carbon disulfide (75-15-0,12122-00-8) + 2,5-diphenyl-4-p-tolyl-2H-pyrazole-3-carboxylic acid hydrazide (293322-56-2) → 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione (293322-59-5)

Guidance literature:

With potassium hydroxide; In ethanol; Heating;

DOI:10.1515/znb-2000-0617

Reference yield:

2,5-diphenyl-4-p-tolyl-2H-pyrazole-3-carboxylic acid methyl ester (293322-53-9) → 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione (293322-59-5)

Guidance literature:

Multi-step reaction with 2 steps

1: 65 percent / hydrazine hydrate / ethanol / Heating

2: 70 percent / KOH / aq. ethanol / Heating

With potassium hydroxide; hydrazine hydrate; In ethanol; 1: Substitution / 2: Cyclization;

DOI:10.1515/znb-2000-0617

Reference yield:

1,3,7-triphenyl-4-p-tolyl-8-oxa-1,2,6-triaza-spiro[4.4]nona-2,6-dien-9-one → 5-(2,5-diphenyl-4-p-tolyl-2H-pyrazol-3-yl)-3H-[1,3,4]oxadiazole-2-thione (293322-59-5)

Guidance literature:

Multi-step reaction with 3 steps

1: 75 percent / NaOMe / 3 h / Heating

2: 65 percent / hydrazine hydrate / ethanol / Heating

3: 70 percent / KOH / aq. ethanol / Heating

With potassium hydroxide; sodium methylate; hydrazine hydrate; In ethanol; 1: Ring cleavage / 2: Substitution / 3: Cyclization;

DOI:10.1515/znb-2000-0617

upstream raw materials:

carbon disulfide

2,5-diphenyl-4-p-tolyl-2H-pyrazole-3-carboxylic acid hydrazide

2,5-diphenyl-4-p-tolyl-2H-pyrazole-3-carboxylic acid methyl ester

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