Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

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Chemical Name:Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate
CAS No.:1429511-40-9
Molecular Formula:C₁₆H₁₈BrN₃O₃
Molecular Weight:380.241
Hs Code.:

Synonyms:Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

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Chemical Property of Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

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Technology Process of Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

There total 3 articles about Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-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:

: 1429510-35-9
ethyl 5-(4-bromo-2-nitrophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazole-4-carboxylate

: 1429511-40-9
Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

Guidance literature:: ethyl 5-(4-bromo-2-nitrophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazole-4-carboxylate; With sodium dithionite; In tetrahydrofuran; water; at 0 - 35 ℃; for 46h;

With hydrogenchloride; In tetrahydrofuran; water; at 10 - 35 ℃; for 3h;

With sodium hydroxide; In tetrahydrofuran; water;

Reference yield:

: 99277-71-1
4-bromo-2-nitrobenzoic acid

: 1429511-40-9
Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: thionyl chloride / acetonitrile / 3 h / Reflux

1.2: 3 h / 10 - 35 °C

1.3: 60 h / 10 - 35 °C

2.1: sodium dithionite / water; tetrahydrofuran / 46 h / 0 - 35 °C

2.2: 3 h / 10 - 35 °C

With thionyl chloride; sodium dithionite; In tetrahydrofuran; water; acetonitrile;

Reference yield:

: 924-99-2,1117-37-9,114894-59-6
ethyl 3-(dimethylamino)acrylate

: 1429511-40-9
Ethyl 5-(2-amino-4-bromophenyl)-1-[(S)-tetrahydrofuran-3-yl]-1H-pyrazolo-4-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: thionyl chloride / acetonitrile / 3 h / Reflux

1.2: 3 h / 10 - 35 °C

1.3: 60 h / 10 - 35 °C

2.1: sodium dithionite / water; tetrahydrofuran / 46 h / 0 - 35 °C

2.2: 3 h / 10 - 35 °C

With thionyl chloride; sodium dithionite; In tetrahydrofuran; water; acetonitrile;