2-pyridinium bis(methoxycarbonyl)methylide

Base Information

• Chemical Name: 2-pyridinium bis(methoxycarbonyl)methylide
• CAS No.: 83759-89-1
• Molecular Formula: C₁₀H₁₁NO₄
• Molecular Weight: 209.202

Synonyms:

Chemical Property of 2-pyridinium bis(methoxycarbonyl)methylide

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

Technology Process of 2-pyridinium bis(methoxycarbonyl)methylide

There total 4 articles about 2-pyridinium bis(methoxycarbonyl)methylide 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: 87.0%

pyridine (110-86-1) + 2-bromomalonic acid (600-31-7) → 2-pyridinium bis(methoxycarbonyl)methylide (83759-89-1,1291-37-8)

Guidance literature:

pyridine; 2-bromomalonic acid; for 24h;

With triethylamine; for 5h;

DOI:10.1002/hlca.200890054

Reference yield: 85.0%

pyridine (110-86-1) + dimethyl 2-((2-methoxyphenyl)-λ3-iodanylidene)malonate (1379474-24-4) → 2-pyridinium bis(methoxycarbonyl)methylide (83759-89-1,1291-37-8)

Guidance literature:

With dirhodium tetraacetate; In dichloromethane; at 20 ℃; for 6h; Inert atmosphere;

DOI:10.1021/ol301268j

Reference yield: 65.0%

pyridine (110-86-1) + dimethyl diazomalonate (6773-29-1) → 2-pyridinium bis(methoxycarbonyl)methylide (83759-89-1,1291-37-8)

Guidance literature:

for 12h; UV-irradiation;

DOI:10.1002/hlca.200890054

upstream raw materials:

pyridine

2-bromomalonic acid

dimethyl diazomalonate

dimethyl 2-((2-methoxyphenyl)-λ³-iodanylidene)malonate

Downstream raw materials:

3,4-diphenyl-5-methoxycarbonyl-6-methoxypyran-2-thione

4,5-diphenyl-3-methoxycarbonyl-6-methylthio-2-pyrone

5,5-bis(methoxycarbonyl)-2,3,6,7-tetraphenyl-5H-thieno<2,3-e>thiopyrane

7a-Methoxy-3,4,5,6-tetraphenyl-2,7-dithioxo-7,7a-dihydro-2H-cyclopenta[b]pyran-4a-carboxylic acid methyl ester

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