tert-butyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-2-benzyl-3-isopropyl-2,3-dihydro-1H-pyrazole-1-carboxylate

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Chemical Name:tert-butyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-2-benzyl-3-isopropyl-2,3-dihydro-1H-pyrazole-1-carboxylate
CAS No.:1434003-97-0
Molecular Formula:C₂₇H₃₃N₅O₄
Molecular Weight:491.59
Hs Code.:

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

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

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

There total 2 articles about tert-butyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-2-benzyl-3-isopropyl-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: 80.0%

: 1434003-91-4
ethyl 3-azido-4-ethynylbenzoate

: 78-84-2
isobutyraldehyde

: 150767-02-5
N-1-(tert-butoxycarbonyl)-N-2-<(4-methoxyphenyl)methyl>hydrazine

: 1434003-97-0
tert-butyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-2-benzyl-3-isopropyl-2,3-dihydro-1H-pyrazole-1-carboxylate

Guidance literature:: With [AuCl(IPr)]; silver trifluoromethanesulfonate; In 1,2-dichloro-ethane; at 50 ℃; Inert atmosphere;
DOI:10.1039/c3ob40223a

Reference yield:

: 1260650-82-5
C₁₁H₁₁NO₂

: 1434003-97-0
tert-butyl 5-[2-azido-4-(ethoxycarbonyl)phenyl]-2-benzyl-3-isopropyl-2,3-dihydro-1H-pyrazole-1-carboxylate

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