4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ⁵-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester

Base Information

• Chemical Name: 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ⁵-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester
• CAS No.: 102098-27-1
• Molecular Formula: C₂₀H₂₄Cl₂NO₅P
• Molecular Weight: 460.294

Synonyms:

Chemical Property of 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ⁵-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

Technology Process of 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ⁵-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester

There total 5 articles about 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ⁵-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester 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: 40.0%

(E)-2,2-dimethyl-1,3-propanediyl α-acetyl-2,3-dichlorostyrylphosphonate (115578-90-0) + methyl 3-aminocrotonate (14205-39-1) → 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ5-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester (102098-27-1)

Guidance literature:

In isopropyl alcohol; Heating;

DOI:10.1248/cpb.35.4144

Reference yield:

2,2-Dimethyl-1,3-propanediol (126-30-7) → 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ5-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester (102098-27-1)

Guidance literature:

Multi-step reaction with 5 steps

1: phosphorus trichloride / diethyl ether; CH₂Cl₂ / 2 h / Ambient temperature

2: triethylamine / diethyl ether / 2 h / Ambient temperature

3: 51 percent / 1 h / 80 °C

4: 25 percent / piperidine*AcOH / benzene / Heating

5: 40 percent / propan-2-ol / Heating

With triethylamine; phosphorus trichloride; piperdinium acetate; In diethyl ether; dichloromethane; isopropyl alcohol; benzene;

DOI:10.1248/cpb.35.4144

Reference yield:

2-chloro-5,5-dimethyl-[1,3,2]dioxaphosphinane (2428-06-0) → 4-(2,3-Dichloro-phenyl)-5-(5,5-dimethyl-2-oxo-2λ5-[1,3,2]dioxaphosphinan-2-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylic acid methyl ester (102098-27-1)

Guidance literature:

Multi-step reaction with 4 steps

1: triethylamine / diethyl ether / 2 h / Ambient temperature

2: 51 percent / 1 h / 80 °C

3: 25 percent / piperidine*AcOH / benzene / Heating

4: 40 percent / propan-2-ol / Heating

With triethylamine; piperdinium acetate; In diethyl ether; isopropyl alcohol; benzene;

DOI:10.1248/cpb.35.4144

upstream raw materials:

(E)-2,2-dimethyl-1,3-propanediyl α-acetyl-2,3-dichlorostyrylphosphonate

methyl 3-aminocrotonate

2-methoxy-5,5-dimethyl-1,3,2-dioxaphosphorinane

2-chloro-5,5-dimethyl-[1,3,2]dioxaphosphinane

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