4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

Base Information

Chemical Name:4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole
CAS No.:1290138-60-1
Molecular Formula:C₁₉H₂₉BrN₂O₂Si
Molecular Weight:425.441
Hs Code.:

Synonyms:4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

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Chemical Property of 4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

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Technology Process of 4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

There total 2 articles about 4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole 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: 100.0%

: 1290138-59-8
2-(3-(4-methoxyphenyl)-1-methyl-1H-pyrazol-5-yl)ethanol

: 69739-34-0
t-butyldimethylsiyl triflate

: 1290138-60-1
4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

Guidance literature:: 2-(3-(4-methoxyphenyl)-1-methyl-1H-pyrazol-5-yl)ethanol; With N-Bromosuccinimide; In acetonitrile; at 0 ℃; for 0.666667h;

t-butyldimethylsiyl triflate; With triethylamine; In dichloromethane; at 0 ℃; for 1h;

Reference yield:

: 100-07-2
4-methoxy-benzoyl chloride

: 1290138-60-1
4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

Guidance literature:: Multi-step reaction with 2 steps

1.1: bis-triphenylphosphine-palladium(II) chloride; triethylamine; copper(l) iodide / tetrahydrofuran / 1 h / 20 °C

1.2: 0.17 h / 150 °C / Microwave irradiation

2.1: N-Bromosuccinimide / acetonitrile / 0.67 h / 0 °C

2.2: 1 h / 0 °C

With bis-triphenylphosphine-palladium(II) chloride; N-Bromosuccinimide; copper(l) iodide; triethylamine; In tetrahydrofuran; acetonitrile;

Reference yield: 24.0%

: 16114-47-9
3,5-dimethylisoxazole-4-boronic acid

: 1290138-60-1
4-bromo-5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1H-pyrazole

: 1290138-61-2
4-(5-(2-(tert-butyldimethylsilyloxy)ethyl)-3-(4-methoxyphenyl)-1-methyl-1-h-pyrazol-4-yl)-3,5-dimethylisoxazole

Guidance literature:: With potassium carbonate; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In 1,2-dimethoxyethane; water; at 140 ℃; Inert atmosphere; microwave irradiation;