4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester

Base Information

• Chemical Name: 4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester
• CAS No.: 127519-07-7
• Molecular Formula: C₄₃H₃₈N₂O₃
• Molecular Weight: 630.786

Synonyms:4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester

Chemical Property of 4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester

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Technology Process of 4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester

There total 1 articles about 4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester 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: 58.0%

diphenylacetic acid chloride (1871-76-7) + 4,5-dihydro-3,4,4-trimethyl-1-(4-methylbenzoyl)-5-methylene-1H-pyrazole (87885-80-1) → 4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester (127519-07-7)

Guidance literature:

With triethylamine; In dichloromethane; for 48h; Heating;

DOI:10.1021/jo00302a046

Reference yield: 56.0%

4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester (127519-07-7) → 3-(2-Hydroxy-3,3-diphenyl-1-propenyl)-4,4,5-trimethyl-4H-pyrazole (127519-10-2)

Guidance literature:

With hydrogenchloride; In ethanol; for 4h; Heating;

DOI:10.1021/jo00302a046

Reference yield:

4-Methyl-benzoic acid 1-(1-diphenylacetyl-4,4-dimethyl-5-methylene-4,5-dihydro-1H-pyrazol-3-ylmethyl)-2,2-diphenyl-vinyl ester (127519-07-7) + 4-methylbenzonitrile oxide (13820-14-9) → 4-Methyl-benzoic acid 1-(6-diphenylacetyl-9,9-dimethyl-3-p-tolyl-1-oxa-2,6,7-triaza-spiro[4.4]nona-2,7-dien-8-ylmethyl)-2,2-diphenyl-vinyl ester (127519-11-3)

Guidance literature:

With triethylamine; In dichloromethane; at 20 ℃; for 12h; Yield given;

DOI:10.1021/jo00302a046

upstream raw materials:

diphenylacetic acid chloride

4,5-dihydro-3,4,4-trimethyl-1-(4-methylbenzoyl)-5-methylene-1H-pyrazole

Downstream raw materials:

3-(2-Hydroxy-3,3-diphenyl-1-propenyl)-4,4,5-trimethyl-4H-pyrazole

4-Methyl-benzoic acid 1-(6-diphenylacetyl-9,9-dimethyl-3-p-tolyl-1-oxa-2,6,7-triaza-spiro[4.4]nona-2,7-dien-8-ylmethyl)-2,2-diphenyl-vinyl ester

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