2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one

Base Information

• Chemical Name: 2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one
• CAS No.: 885038-69-7
• Molecular Formula: C₁₂H₇ClF₂N₂OS
• Molecular Weight: 300.716

Synonyms:2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one

Chemical Property of 2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one

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Technology Process of 2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one

There total 2 articles about 2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-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: 69.0%

methyl 4-oxotetrahydrothiophene-3-carboxylate (2689-68-1,99328-39-9) + 4-chloro-2,5-difluorobenzamidine (764648-44-4) → 2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one (885038-69-7)

Guidance literature:

With sodium methylate; In methanol; at 20 - 50 ℃;

DOI:10.1016/j.bmc.2012.08.054

Reference yield:

Methyl tetrahydro-4-oxo-3-thiophenecarboxylate (78647-31-1) + 4-chloro-2,5-difluorobenzamidine (764648-44-4) → 2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one (885038-69-7)

Guidance literature:

With sodium methylate; In methanol; at 20 - 60 ℃; for 24h;

Reference yield: 97.0%

2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidin-4(3H)-one (885038-69-7) → 4-chloro-2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidine (885038-88-0)

Guidance literature:

With trichlorophosphate; for 3h; Reflux;

DOI:10.1016/j.bmc.2012.08.054

upstream raw materials:

Methyl tetrahydro-4-oxo-3-thiophenecarboxylate

4-chloro-2,5-difluorobenzamidine

methyl 4-oxotetrahydrothiophene-3-carboxylate

Downstream raw materials:

4-chloro-2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidine

4-chloro-2-(4-chloro-2,5-difluorophenyl)-5,7-dihydrothieno[3,4-d]pyrimidine 6,6-dioxide

ethyl 1-[2-(4-chloro-2,5-difluorophenyl)-6,6-dioxido-5,7-dihydrothieno[3,4-d]pyrimidin-4-yl]piperidine-4-carboxylate

ethyl {1-[2-(4-chloro-2,5-difluorophenyl)-6,6-dioxido-5,7-dihydrothieno[3,4-d]pyrimidin-4-yl]piperidin-4-yl}acetate

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