9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

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Chemical Name:9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine
CAS No.:1448231-43-3
Molecular Formula:C₂₈H₁₈N₆S
Molecular Weight:470.557
Hs Code.:

Synonyms:9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

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Chemical Property of 9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

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Technology Process of 9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

There total 8 articles about 9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine 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: 51.0%

: 1448231-37-5
C₂₈H₂₀N₆S

: 1448231-43-3
9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

Guidance literature:: With iron(III) chloride; In ethanol; at 45 ℃; for 12h;
DOI:10.3184/174751913X13570601346457

Reference yield:

: 14002-51-8
4-biphenyl-carboxylic acid chloride

: 1448231-43-3
9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

Guidance literature:: Multi-step reaction with 7 steps

1: pyridine / 3.5 h

2: tetrachloromethane; triphenylphosphine / acetonitrile / 14 h / 20 °C / Reflux

3: sodium ethanolate / ethanol

4: acetic anhydride / 7 h / Reflux

5: hydrazine hydrate / ethanol / 3 h / Reflux

6: acetic acid / ethanol / 2 h / Reflux

7: iron(III) chloride / ethanol / 12 h / 45 °C

With pyridine; tetrachloromethane; iron(III) chloride; hydrazine hydrate; sodium ethanolate; acetic anhydride; acetic acid; triphenylphosphine; In ethanol; acetonitrile;
DOI:10.3184/174751913X13570601346457

Reference yield:

: 50656-03-6
N-phenyl-1,1-biphenyl-4-ylcarbohydrazonoyl chloride

: 1448231-43-3
9-(1,1'-biphenyl-4-yl)-7-phenyl-3-(2-thienyl)-7H-pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine

Guidance literature:: Multi-step reaction with 5 steps

1: sodium ethanolate / ethanol

2: acetic anhydride / 7 h / Reflux

3: hydrazine hydrate / ethanol / 3 h / Reflux

4: acetic acid / ethanol / 2 h / Reflux

5: iron(III) chloride / ethanol / 12 h / 45 °C

With iron(III) chloride; hydrazine hydrate; sodium ethanolate; acetic anhydride; acetic acid; In ethanol;
DOI:10.3184/174751913X13570601346457