N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide

Base Information

• Chemical Name: N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide
• CAS No.: 1496609-80-3
• Molecular Formula: C₁₈H₁₆N₄O₂
• Molecular Weight: 320.351
• Mol file: 1496609-80-3.mol

Synonyms:N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide

Chemical Property of N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide

There total 3 articles about N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide 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: 66.0%

diazomethane (186581-53-3,908094-01-9,334-88-3) + (E)-N-(benzoxazol-2-yl)-3-(4''-methylphenyl)acrylamide (1496609-47-2) → N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide (1496609-80-3)

Guidance literature:

With triethylamine; In diethyl ether; dichloromethane; at -20 - -15 ℃; regioselective reaction;

DOI:10.1007/s00044-013-0884-x

Reference yield:

trans-p-methylcinnamic acid (1866-39-3,940-61-4) → N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide (1496609-80-3)

Guidance literature:

Multi-step reaction with 3 steps

1: thionyl chloride

2: toluene / Reflux

3: triethylamine / diethyl ether; dichloromethane / -20 - -15 °C

With thionyl chloride; triethylamine; In diethyl ether; dichloromethane; toluene;

DOI:10.1007/s00044-013-0884-x

Reference yield:

(E)-p-methylcinnamoyl chloride (15851-89-5,13565-07-6) → N-(benzoxazol-2-yl)-4',5'-dihydro-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide (1496609-80-3)

Guidance literature:

Multi-step reaction with 2 steps

1: toluene / Reflux

2: triethylamine / diethyl ether; dichloromethane / -20 - -15 °C

With triethylamine; In diethyl ether; dichloromethane; toluene;

DOI:10.1007/s00044-013-0884-x

upstream raw materials:

trans-p-methylcinnamic acid

diazomethane

(E)-N-(benzoxazol-2-yl)-3-(4''-methylphenyl)acrylamide

(E)-p-methylcinnamoyl chloride

Downstream raw materials:

N-(benzoxazol-2-yl)-4'-(4''-methylphenyl)-1'H-pyrazole-3'-carboxamide