tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

Base Information

Chemical Name:tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate
CAS No.:1190392-28-9
Molecular Formula:C₁₉H₂₃BrN₂O₄
Molecular Weight:423.307
Hs Code.:

Synonyms:tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

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Chemical Property of tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

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Technology Process of tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

There total 6 articles about tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-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:

: 1190392-27-8
tert-butyl 3-[4-(benzyloxy)-4-oxobutyl]-1H-pyrazole-1-carboxylate

: 1190392-28-9
tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

Guidance literature:: tert-butyl 3-[4-(benzyloxy)-4-oxobutyl]-1H-pyrazole-1-carboxylate; With sodium hexamethyldisilazane; In tetrahydrofuran; at -78 ℃; for 1h;

With chloro-trimethyl-silane; In tetrahydrofuran; for 0.5h;

With N-Bromosuccinimide; In tetrahydrofuran; at -78 - 0 ℃; for 4h;

Reference yield:

: 870-46-2
t-butoxycarbonylhydrazine

: 1190392-28-9
tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1.1: isopropyl alcohol / 4 h / 20 °C

2.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 20 °C

3.1: potassium carbonate / N,N-dimethyl-formamide

4.1: sodium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C

4.2: 0.5 h

4.3: 4 h / -78 - 0 °C

With tetrabutyl ammonium fluoride; sodium hexamethyldisilazane; potassium carbonate; In tetrahydrofuran; N,N-dimethyl-formamide; isopropyl alcohol;

Reference yield:

: 1190392-26-7
4-[1-(tert-butoxycarbonyl)-1H-pyrazol-3-yl]-butanoic acid

: 1190392-28-9
tert-butyl 3-[4-(benzyloxy)-3-bromo-4-oxobutyl]-1H-pyrazole-1-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: potassium carbonate / N,N-dimethyl-formamide

2.1: sodium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C

2.2: 0.5 h

2.3: 4 h / -78 - 0 °C

With sodium hexamethyldisilazane; potassium carbonate; In tetrahydrofuran; N,N-dimethyl-formamide;