Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate

Base Information

• Chemical Name: Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate
• CAS No.: 142503-19-3
• Molecular Formula: C₄₄H₃₃N₂O₇P
• Molecular Weight: 732.729
• Mol file: 142503-19-3.mol

Synonyms:

Chemical Property of Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate

There total 5 articles about Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate 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: 42.0%

4-chloromethylene-2-phenyl-4H-oxazol-5-one (14848-36-3) + ethyl-3-(benzoylamino)-2-oxo-6-(triphenylphosphoranylidenemethyl)-2H-pyran-5-carboxylate (142503-18-2) → Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate (142503-19-3)

Guidance literature:

In N,N-dimethyl-formamide; at 25 ℃; for 12h;

DOI:10.1055/s-1992-26133

Reference yield: 9.0%

4-chloromethylene-2-phenyl-4H-oxazol-5-one (14848-36-3) + ethyl 3-oxo-4-(triphenylphosphoranylidene)butanoate (13148-05-5) → ethyl-3-(benzoylamino)-2-oxo-6-(triphenylphosphoranylidenemethyl)-2H-pyran-5-carboxylate (142503-18-2) + Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate (142503-19-3)

Guidance literature:

In dichloromethane; at 25 ℃; for 12h;

DOI:10.1055/s-1992-26133

Reference yield:

ethyl 3-oxo-4-(triphenylphosphoranylidene)butanoate (13148-05-5) → Ethyl 3-benzoylamino-6-<2-(4,5-dihydro-5-oxo-2-phenyl-4-oxazolylidene)-1-(triphenylphosphoranylidene)ethyl>-2-oxo-2H-pyran-5-carboxylate (142503-19-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 56 percent / CH₂Cl₂ / 12 h / 25 °C

2: 42 percent / dimethylformamide / 12 h / 25 °C

In dichloromethane; N,N-dimethyl-formamide;

DOI:10.1055/s-1992-26133

upstream raw materials:

4-chloromethylene-2-phenyl-4H-oxazol-5-one

ethyl 3-oxo-4-(triphenylphosphoranylidene)butanoate

ethyl-3-(benzoylamino)-2-oxo-6-(triphenylphosphoranylidenemethyl)-2H-pyran-5-carboxylate

4-ethoxymethylene-2-phenyl-2-oxazolin-5-one