ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

Base Information

Chemical Name:ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate
CAS No.:757189-11-0
Molecular Formula:C₂₀H₂₁N₃O₄
Molecular Weight:367.404
Hs Code.:

Synonyms:ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

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Chemical Property of ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

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Technology Process of ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

There total 1 articles about ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate 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: 62.0%

: 623-73-4
diazoacetic acid ethyl ester

: 1699-39-4
2-(3-(benzyloxy)-4-methoxyphenyl)acetonitrile

: 757189-11-0
ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

Guidance literature:: With sodium ethanolate; In ethanol; at 0 ℃;
DOI:10.3987/COM-06-10824

Reference yield: 83.0%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 757189-11-0
ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

: 757189-08-5
ethyl 3-(3-benzyloxy-4-methoxyphenyl)-4-(1H-pyrrol-1-yl)-1H-pyrazole-5-carboxylate

Guidance literature:: cis,trans-2,5-dimethoxytetrahydrofuran; With 4-chlorpyridine hydrochloride; In 1,4-dioxane; for 0.25h;

ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate; In 1,4-dioxane; Further stages.; Heating;
DOI:10.3987/COM-06-10824

Reference yield:

: 757189-11-0
ethyl 4-amino-5-(3-benzyloxy-4-methoxyphenyl)-2H-pyrazole-3-carboxylate

: 3-(3-hydroxy-4-methoxyphenyl)-1-benzylpyrazolo[3,4-b]pyrrolizin-8(1H)-one

Guidance literature:: Multi-step reaction with 5 steps

1.1: 4-chloropyridine hydrochloride / dioxane / 0.25 h

1.2: 83 percent / dioxane / Heating

2.1: 63 percent / 24 h / Heating

3.1: 46 percent / NaH / dimethylformamide / 12 h / 20 °C

4.1: POCl₃

4.2: 85 percent / aq. NaOH

5.1: HBr / acetic acid

5.2: 30 percent / NaOH / methanol; H₂O / 20 °C

With hydrogen bromide; 4-chlorpyridine hydrochloride; sodium hydride; trichlorophosphate; In 1,4-dioxane; acetic acid; N,N-dimethyl-formamide; 1.1: Clauson-Kaas reaction;
DOI:10.3987/COM-06-10824