3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione

Base Information

• Chemical Name: 3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione
• CAS No.: 58273-00-0
• Molecular Formula: C₁₆H₁₀ClNO₃
• Molecular Weight: 299.713
• Mol file: 58273-00-0.mol

Synonyms:3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione

Chemical Property of 3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione

There total 4 articles about 3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione 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: 47.0%

chromone-3-carboxylic acid (39079-62-4) + 4-chloro-aniline (106-47-8) → 3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione (58273-00-0)

Guidance literature:

With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; In dichloromethane; N,N-dimethyl-formamide; at 0 - 20 ℃;

DOI:10.1039/c4cc08798d

Reference yield:

chromone-3-carboxylic acid (39079-62-4) + 4-chloro-aniline (106-47-8) → (3E)-3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione (58273-00-0) + (3Z)-3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione

Guidance literature:

chromone-3-carboxylic acid; With 1,1'-carbonyldiimidazole; In N,N-dimethyl-formamide; at 60 ℃; Inert atmosphere;

4-chloro-aniline; In N,N-dimethyl-formamide; at 0 - 20 ℃; Overall yield = 57 %; Inert atmosphere;

DOI:10.1007/s11030-019-09917-8

Reference yield:

→ (3E)-3-{[(4-chlorophenyl)amino]methylidene}-3,4-dihydro-2H-1-benzopyran-2,4-dione (58273-00-0)

Guidance literature:

Cumarin 1a, p-Chloranilin, Orthoameisensaeuretriaethylester;

upstream raw materials:

chromone-3-carboxylic acid

4-chloro-aniline