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1-ethyl-3-(2-oxo-2-phenylethylidene)indolin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

31541-38-5

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31541-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31541-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,4 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31541-38:
(7*3)+(6*1)+(5*5)+(4*4)+(3*1)+(2*3)+(1*8)=85
85 % 10 = 5
So 31541-38-5 is a valid CAS Registry Number.

31541-38-5Relevant academic research and scientific papers

Diastereoselective trans Cyclopropanation of 3-Alkylidene Oxindoles with in Situ Generated α-Diazo Carbonyls or α,β-Unsaturated Diazo Compounds

Pramanik, Sayan,Ray, Suman,Maity, Suvendu,Ghosh, Prasanta,Mukhopadhyay, Chhanda

, p. 2240 - 2252 (2021/03/18)

An efficient diastereoselective trans cyclopropanation of 3-alkylidene oxindoles with in situ generated α-diazo carbonyl compounds or α,β-unsaturated diazo compounds under metal-free conditions has been developed to synthesize 3-spirocyclopropyl-2-oxindol

A new and convenient synthetic way to 2-substituted thieno[2,3-b]indoles

Irgashev, Roman A.,Karmatsky, Arseny A.,Rusinov, Gennady L.,Charushin, Valery N.

, p. 1000 - 1007 (2015/08/19)

A short and robust approach for the synthesis of 2-(hetero)aryl substituted thieno[2,3-b]indoles from easily available 1-alkylisatins and acetylated (hetero)arenes has been advanced. The two-step procedure includes the "aldol-crotonic" type of condensatio

Synthesis and structure of new oxoindoles

Macaev,Radul,Shterbet,Pogrebnoi,Sucman,Malinovskii,Barba,Gdaniec

, p. 298 - 305 (2008/09/20)

The synthesis and study of the structure of new oxoindoles has been carried out. The molecular and crystal structure, and the stereochemistry atom of C(3) of 1,2-diacetyl-5′-phenyl(2′,4′ dihydrospiro[3H-indol-3, 3′-[3H]pyrazol]-2-(1H)-one have been establ

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