4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione

Base Information

• Chemical Name: 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione
• CAS No.: 1571869-67-4
• Molecular Formula: C₁₇H₁₆BrN₅O₂
• Molecular Weight: 402.25

Synonyms:4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione

Chemical Property of 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione

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Technology Process of 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione

There total 5 articles about 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione 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: 94.0%

1,3-dimethylbarbituric acid (769-42-6) + 4-bromo-benzaldehyde (1122-91-4) + 3-amino-5-methylpyrazole (31230-17-8) → 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione (1571869-67-4)

Guidance literature:

With cellulose supported acidic ionic liquid (Cell-IL); In ethanol; for 0.583333h; regioselective reaction; Reflux;

DOI:10.1039/c3ob42132e

Reference yield: 92.0%

1,3-dimethylbarbituric acid (769-42-6) + 4-bromo-benzaldehyde (1122-91-4) + 3-methyl-2-pyrazoline-5-one (3206-39-1) → 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione (1571869-67-4)

Guidance literature:

With zinc(II) oxide; ammonium acetate; In water; for 2.8h; Reagent/catalyst; Reflux; Green chemistry;

DOI:10.3390/molecules21040441

Reference yield: 90.0%

6-Amino-1,3-dimethylbarbituric acid (6642-31-5) + 4-bromo-benzaldehyde (1122-91-4) + 3-methyl-2-pyrazoline-5-one (108-26-9) → 4-(4-bromophenyl)-3,6,8-trimethyl-8,9-dihydro-1H-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine-5,7(4H,6H)-dione (1571869-67-4)

Guidance literature:

With 3C₇H₃NO₅^(2-)*3Nd⁽³⁺⁾*27H₂O*Na⁽¹⁺⁾*O₄₀SiW₁₂^(4-); In water; for 2h; Reflux; Green chemistry;

DOI:10.1002/aoc.5058

upstream raw materials:

1,3-dimethylbarbituric acid

4-bromo-benzaldehyde

3-amino-5-methylpyrazole

3-methyl-2-pyrazoline-5-one

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