2-Indolinone,3'-(oxopropanediylidene)di-

Base Information

• Chemical Name: 2-Indolinone,3'-(oxopropanediylidene)di-
• CAS No.: 21905-77-1
• Molecular Formula: C₁₉H₁₂N₂O₃
• Molecular Weight: 316.316
• Hs Code.: 2933790090
• NSC Number: 174506
• Mol file: 21905-77-1.mol

Synonyms:NSC174506;21905-77-1;NSC-174506;2-Indolinone,3'-(oxopropanediylidene)di-;2H-Indol-2-one,3'-(2-oxo-1,3-propanediylidene)bis[1,3-dihydro-

Chemical Property of 2-Indolinone,3'-(oxopropanediylidene)di-

Chemical Property:

• Boiling Point: 648°Cat760mmHg
• Flash Point: 256.4°C
• PSA: 75.27000
• Density: 1.516g/cm³
• LogP: 2.90290
• XLogP3: 1.5
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 2
• Exact Mass: 316.08479225
• Heavy Atom Count: 24
• Complexity: 595

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC=C2C(=C1)C(=CC(=O)C=C3C4=CC=CC=C4NC3=O)C(=O)N2
• Isomeric SMILES: C1=CC=C2C(=C1)/C(=C\C(=O)/C=C\3/C4=CC=CC=C4NC3=O)/C(=O)N2

Technology Process of 2-Indolinone,3'-(oxopropanediylidene)di-

There total 3 articles about 2-Indolinone,3'-(oxopropanediylidene)di- 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: 75.0%

1,3-bis(3-hydroxy-3-oxindyl)-2-propanone (76325-81-0) → 1,3-di(2-oxoindolin-3-ylidene)acetone (21905-77-1)

Guidance literature:

With hydrogenchloride; acetic acid; at 95 ℃; for 0.5h;

DOI:10.1002/jps.2600691035

Reference yield:

indole-2,3-dione (91-56-5,1186480-61-4,84788-92-1) → 1,3-di(2-oxoindolin-3-ylidene)acetone (21905-77-1)

Guidance literature:

Multi-step reaction with 2 steps

1: 39 percent / diethylamine / ethanol / Heating

2: 75 percent / HCl, acetic acid / 0.5 h / 95 °C

With hydrogenchloride; acetic acid; diethylamine; In ethanol;

DOI:10.1002/jps.2600691035

Reference yield:

→ 1,3-di(2-oxoindolin-3-ylidene)acetone (21905-77-1)

Guidance literature:

1,3-Di-(3-hydroxy-2-oxo-3-indolyl)-propan-2-on;

DOI:10.1002/oms.1210010314

upstream raw materials:

1,3-bis(3-hydroxy-3-oxindyl)-2-propanone

indole-2,3-dione