1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

Base Information

Chemical Name:1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one
CAS No.:142465-19-8
Molecular Formula:C₁₈H₁₆N₄OS
Molecular Weight:336.417
Hs Code.:

Synonyms:1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

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Chemical Property of 1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

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Technology Process of 1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

There total 15 articles about 1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one 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: 91.0%

: 64-19-7,77671-22-8
acetic acid

: 142465-12-1
2-hydrazinyl-3-phenyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one

: 142465-19-8
1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

Guidance literature:: Heating;
DOI:10.1002/jhet.5570450226

Reference yield: 91.0%

: 108-24-7
acetic anhydride

: 142465-12-1
2-hydrazinyl-3-phenyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one

: 142465-19-8
1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

Guidance literature:: Heating;
DOI:10.1002/jhet.5570450226

Reference yield:

: 4506-71-2
ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

: 142465-19-8
1-methyl-4-phenyl-6,7,8,9-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidine-5(4H)-one

Guidance literature:: Multi-step reaction with 5 steps

1: benzene; toluene / 3 h / 120 °C

2: 10percent aq. KOH / 3 h / Heating

3: 47 percent / POCl₃, PCl₃ / 18 h / 110 - 120 °C

4: 85 percent / hydrazine hydrate / aq. ethanol / 0.03 h / Heating

5: 70 percent / 5 h / Heating

With potassium hydroxide; hydrazine hydrate; trichlorophosphate; phosphorus trichloride; In ethanol; toluene; benzene;