1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide

Base Information

• Chemical Name: 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide
• CAS No.: 1201628-87-6
• Molecular Formula: Br*C₂₁H₁₇N₂O₃
• Molecular Weight: 425.282

Synonyms:1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide

Chemical Property of 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide

Chemical Property:

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Technology Process of 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide

There total 3 articles about 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide 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: 90.0%

5-benzoyl-1,3-dimethyl-6-(2-phenylethenyl)pyrimidine-2,4(1H,3H)-dione (1201628-84-3) → 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide (1201628-87-6)

Guidance literature:

With bromine; In chloroform; at 50 ℃; for 0.5h; Reflux;

DOI:10.1007/s11172-008-0232-3

Reference yield:

5-benzoyl-1,3,6-trimethylpyrimidine-2,4(1H,3H)-dione (444058-30-4) → 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide (1201628-87-6)

Guidance literature:

Multi-step reaction with 2 steps

1: piperidine / ethanol / 15 h / Reflux

2: bromine / chloroform / 0.5 h / 50 °C / Reflux

With piperidine; bromine; In ethanol; chloroform;

DOI:10.1007/s11172-008-0232-3

Reference yield:

benzaldehyde (100-52-7) → 1,3-dimethyl-2,4-dioxo-5,7-diphenyl-1H,2H,3H,4H-pyrano[4,3-d]pyrimidinium bromide (1201628-87-6)

Guidance literature:

Multi-step reaction with 2 steps

1: piperidine / ethanol / 15 h / Reflux

2: bromine / chloroform / 0.5 h / 50 °C / Reflux

With piperidine; bromine; In ethanol; chloroform;

DOI:10.1007/s11172-008-0232-3

upstream raw materials:

5-benzoyl-1,3-dimethyl-6-(2-phenylethenyl)pyrimidine-2,4(1H,3H)-dione

benzaldehyde

5-benzoyl-1,3,6-trimethylpyrimidine-2,4(1H,3H)-dione

Downstream raw materials:

C₂₂H₁₉N₃O₅

C₂₄H₁₈N₄O₃

Br^(1-)*C₂₇H₂₁BrN₃O₂⁽¹⁺⁾

4-methoxy-benzaldehyde

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