methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate

Base Information

• Chemical Name: methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate
• CAS No.: 1434003-95-8
• Molecular Formula: C₂₅H₂₉N₅O₅
• Molecular Weight: 479.536

Synonyms:methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate

Chemical Property of methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate

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Technology Process of methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate

There total 2 articles about methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-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: 96.0%

methyl 2-(4-methoxybenzyl)hydrazinecarboxylate (1383604-52-1) + ethyl 3-azido-4-ethynylbenzoate (1434003-91-4) + isobutyraldehyde (78-84-2) → methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate (1434003-95-8)

Guidance literature:

With [AuCl(IPr)]; silver trifluoromethanesulfonate; In 1,2-dichloro-ethane; at 50 ℃; Inert atmosphere;

DOI:10.1039/c3ob40223a

Reference yield:

C11H11NO2 (1260650-82-5) → methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate (1434003-95-8)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium nitrite; sulfuric acid / water; acetonitrile; N,N-dimethyl-formamide / 0.5 h / 0 °C

1.2: 0.5 h / 0 - 20 °C

2.1: silver trifluoromethanesulfonate; [AuCl(IPr)] / 1,2-dichloro-ethane / 50 °C / Inert atmosphere

With sulfuric acid; [AuCl(IPr)]; silver trifluoromethanesulfonate; sodium nitrite; In water; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetonitrile;

DOI:10.1039/c3ob40223a

Reference yield: 85.0%

methyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-3-isopropyl-2-(4-methoxybenzyl)-2,3-dihydro-1H-pyrazole-1-carboxylate (1434003-95-8) → 6-ethyl 1-methyl 3-isopropyl-2-(4-methoxybenzyl)-1,2,3,4-tetrahydropyrazolo[4,3-b]indole-1,6-dicarboxylate (1434004-06-4)

Guidance literature:

With rhodium(III) chloride hydrate; In 1,2-dimethoxyethane; at 80 ℃; for 4h; Inert atmosphere;

DOI:10.1039/c3ob40223a

upstream raw materials:

methyl 2-(4-methoxybenzyl)hydrazinecarboxylate

ethyl 3-azido-4-ethynylbenzoate

isobutyraldehyde

C₁₁H₁₁NO₂

Downstream raw materials:

6-ethyl 1-methyl 3-isopropyl-2-(4-methoxybenzyl)-1,2,3,4-tetrahydropyrazolo[4,3-b]indole-1,6-dicarboxylate

6-ethyl 1-methyl 4-benzyl-3-isopropyl-1,4-dihydropyrazolo[4,3-b]indole-1,6-dicarboxylate

6-ethyl 1-methyl 4-benzyl-3-isopropyl-2-(4-methoxybenzyl)-1,2,3,4-tetrahydropyrazolo[4,3-b]-indole-1,6-dicarboxylate

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