4-Methoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine

Base Information

• Chemical Name: 4-Methoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine
• CAS No.: 944902-70-9
• Molecular Formula: C8H11N3O
• Molecular Weight: 165.195
• Hs Code.: 2933990090
• Mol file: 944902-70-9.mol

Synonyms:4-Methoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine;4-methoxy-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

Chemical Property of 4-Methoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine

Chemical Property:

• PSA: 47.04000
• LogP: 0.45970

Purity/Quality:

98%min ^*data from raw suppliers

4-methoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-Methoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine

There total 4 articles about 4-Methoxy-5H,6H,7H,8H-pyrido[4,3-d]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:

6-benzyl-4-methoxy-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (1071435-57-8) → 4-methoxy-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidine (944902-70-9)

Guidance literature:

With hydrogen; palladium 10% on activated carbon; In methanol; under 760.051 Torr;

Reference yield:

ethyl 1-benzyl-4-oxopiperidine-3-carboxylate hydrochloride (1454-53-1) → 4-methoxy-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidine (944902-70-9)

Guidance literature:

Multi-step reaction with 4 steps

1.1: sodium methylate / methanol / 16 h / 85 °C

1.2: Cooling with ice

1.3: pH 7

2.1: trichlorophosphate / N,N-dimethyl-formamide / acetonitrile / 1 h / 70 °C

2.2: Cooling with ice

3.1: 2 h / Reflux

4.1: hydrogen / palladium 10% on activated carbon / methanol / 760.05 Torr

With hydrogen; sodium methylate; trichlorophosphate; palladium 10% on activated carbon; N,N-dimethyl-formamide; In methanol; acetonitrile;

Reference yield:

6-benzyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4(3H)-one (109229-22-3) → 4-methoxy-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidine (944902-70-9)

Guidance literature:

Multi-step reaction with 3 steps

1.1: trichlorophosphate / N,N-dimethyl-formamide / acetonitrile / 1 h / 70 °C

1.2: Cooling with ice

2.1: 2 h / Reflux

3.1: hydrogen / palladium 10% on activated carbon / methanol / 760.05 Torr

With hydrogen; trichlorophosphate; palladium 10% on activated carbon; N,N-dimethyl-formamide; In methanol; acetonitrile;

upstream raw materials:

6-benzyl-4-methoxy-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

ethyl 1-benzyl-4-oxopiperidine-3-carboxylate hydrochloride

6-benzyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4(3H)-one

6-benzyl-4-chloro-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidine

Downstream raw materials:

5-chloro-2-(4-methoxy-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)benzonitrile

5-chloro-2-(4-hydroxy-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)benzonitrile

2-(4-methoxy-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-5-methylbenzonitrile

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