ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

Base Information

Chemical Name:ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate
CAS No.:161886-26-6
Molecular Formula:C₂₇H₂₇N₇O₃
Molecular Weight:497.556
Hs Code.:

Synonyms:ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

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Chemical Property of ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

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Technology Process of ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

There total 6 articles about ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-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:

: 123-66-0
Ethyl hexanoate

: 161886-26-6
ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1: t-BuOK / tetrahydrofuran / 3 h / Ambient temperature

2: acetic acid / ethanol / 12 h / Heating

3: 73.5 percent / NaH / dimethylformamide / 4 h / Ambient temperature

4: 1.) trimethyltin azide, 2.) 1N aq. HCl / 1.) xylene, 110 deg C, 24 h, 2.) ethanol, RT, 1 h

With hydrogenchloride; trimethyltin azide; potassium tert-butylate; sodium hydride; acetic acid; In tetrahydrofuran; ethanol; N,N-dimethyl-formamide;
DOI:10.1248/cpb.43.960

Reference yield:

: 114772-54-2
4'-(bromomethyl)-1,1'-biphenyl-2-carbonitrile

: 161886-26-6
ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1: 73.5 percent / NaH / dimethylformamide / 4 h / Ambient temperature

2: 1.) trimethyltin azide, 2.) 1N aq. HCl / 1.) xylene, 110 deg C, 24 h, 2.) ethanol, RT, 1 h

With hydrogenchloride; trimethyltin azide; sodium hydride; In N,N-dimethyl-formamide;
DOI:10.1248/cpb.43.960

Reference yield:

: 6994-25-8,103259-35-4,19750-02-8
3-amino-4-pyrazolecarboxylic acid ethyl ester

: 161886-26-6
ethyl 6-butyl-7-oxo-4-<<2'-(1H-tetrazol-5-yl)biphenyl-4-yl>methyl>-4,7-dihydropyrazolo<1,5a>pyrimidine-3-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: acetic acid / ethanol / 12 h / Heating

2: 73.5 percent / NaH / dimethylformamide / 4 h / Ambient temperature

3: 1.) trimethyltin azide, 2.) 1N aq. HCl / 1.) xylene, 110 deg C, 24 h, 2.) ethanol, RT, 1 h

With hydrogenchloride; trimethyltin azide; sodium hydride; acetic acid; In ethanol; N,N-dimethyl-formamide;
DOI:10.1248/cpb.43.960