3-Methyleneoxindole

Base Information

• Chemical Name: 3-Methyleneoxindole
• CAS No.: 1861-29-6
• Molecular Formula: C9H7 N O
• Molecular Weight: 145.161
• Hs Code.: 2933790090
• DSSTox Substance ID: DTXSID50171855
• Nikkaji Number: J1.351.662F
• Wikidata: Q27102724
• Metabolomics Workbench ID: 51091
• Mol file: 1861-29-6.mol

Synonyms:3-methyleneoxindole

Chemical Property of 3-Methyleneoxindole

Chemical Property:

• Vapor Pressure: 3.53E-05mmHg at 25°C
• Boiling Point: 353.7°C at 760 mmHg
• Flash Point: 204.9°C
• PSA: 29.10000
• Density: 1.2g/cm³
• LogP: 1.78990
• XLogP3: 1.4
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 145.052763847
• Heavy Atom Count: 11
• Complexity: 210

Purity/Quality:

97% ^*data from raw suppliers

3-METHYLIDENE-2,3-DIHYDRO-1H-INDOL-2-ONE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: C=C1C2=CC=CC=C2NC1=O

Technology Process of 3-Methyleneoxindole

There total 15 articles about 3-Methyleneoxindole 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: 100.0%

3-hydroxy-3-trimethylsilylmethyloxindole → 3-methylideneoxindole (1861-29-6)

Guidance literature:

With boron trifluoride diethyl etherate; In dichloromethane; at -78 - 0 ℃; for 3h; Inert atmosphere;

DOI:10.1016/j.bmc.2008.11.017

Reference yield: 91.0%

3-methoxycarbonyloxy-3-methylindolin-2-one (292851-37-7) → 3-methylideneoxindole (1861-29-6)

Guidance literature:

at 640 ℃; for 0.75h; under 0.035 Torr;

Reference yield: 89.0%

3-acetoxy-3-methylindolin-2-one (68543-20-4) → 3-methylideneoxindole (1861-29-6)

Guidance literature:

at 650 ℃; for 0.666667h; under 0.02 Torr;

upstream raw materials:

indole-3-acetic acid

3-acetoxy-3-methylindolin-2-one

3-acetoxy-1-acetyl-3-methylindolin-2-one

3-methoxycarbonyloxy-3-methylindolin-2-one

Downstream raw materials:

1-methyl-2-piperidinecarbonitrile

methyl (2'S,3R,5'S)-1'-acetyl-2-oxo-2'-[4-(trifluoromethyl)phenyl]-1,2-dihydrospiro[indole-3,3'-pyrrolidine]-5'-carboxylate

methyl (2'S,3R,5'S)-1'-acetyl-2'-(4-cyanophenyl)-2-oxo-1,2-dihydrospiro[indole-3,3'-pyrrolidine]-5'-carboxylate

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