cas 143884-84-8, 7-FLUORO-3-(HYDROXYIMINO)INDOLIN-2-ONE | Articles data ｜lookchem

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143884-84-8

Articles about 143884-84-8Total 5 be found

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Copper-Catalyzed Carbonyl Group Controlled Coupling of Isatin Oximes with Arylboronic Acids To Prepare N-Aryloxindole Nitrones
A variety of (E)-N-aryloxindole nitrones were prepared in good to excellent yields by using a copper-catalyzed coupling reaction of isatin oximes and arylboronic acids under mild conditions. Various arylboronic acids that contain sensitive functional groups were tolerated in the transformation, and detailed studies show that the carbonyl group of the isatin oximes serves as a ligand to control the formation of the (E)-oxindole nitrones. This method to prepare (E)-N-aryloxindole nitrones was easily performed on a gram scale and efficiently used to synthesize estrone-derived oxindole nitrone in high yield.
Mo, Xue-Ling,Chen, Chun-Hua,Liang, Cui,Mo, Dong-Liang
p. 150 - 159
(2017/11/28)

Synthesis of N-Aryl Oxindole Nitrones through a Metal-Free Selective N-Arylation Process
An efficient selective N-arylation of 3-(hydroxyimino)indolin-2-ones with diaryliodonium salts to prepare (Z)-N-aryl oxindole nitrones has been achieved under simple base-mediated conditions. The reaction tolerated a variety of diaryliodonium salts with diverse and sensitive functional groups. Studies on the oxime structures revealed that the pyrroline ring and carbonyl group in 3-(hydroxyimino)indolin-2-ones played important roles in the selective N-arylation process. The N-aryl oxindole nitrones could be prepared rapidly and easily at the gram scale.
Wu, Si-Yi,Ma, Xiao-Pan,Liang, Cui,Mo, Dong-Liang
p. 3232 - 3238
(2017/03/23)

Compounds and Uses Thereof - 848
This invention relates to novel compounds having the structural formula I below: and their pharmaceutically acceptable salts, tautomers or in vivo-hydrolysable precursors, compositions and methods of use thereof, wherein R1, R2, Rsu
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Page/Page column 68

(2009/01/24)

Process for preparing isatins with control of side-product formation
Methods and kits for preventing or minimizing the formation of isatin oximes during formation of an isatin from an isonitrosoacetanilide are provided. Also provided are methods and kits for preventing or minimizing the formation of isatin oxime impurities
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Page/Page column 6

(2008/06/13)

Synthesis of isatin 3-oximes from 2-nitroacetanilides
2-Nitroacetanilides, prepared by alkaline hydrolysis of 1-arylamino-1-methylthio-2-nitroethenes, are converted into isatin (1H-indole-2,3-dione) 3-oximes by treatment with concentrated sulfuric acid or trifluoromethanesulfonic acid at room temperature.
Kearney,Harris,Jackson,Joule
p. 769 - 772
(2007/10/02)

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115661-37-5
2-amino-3-fluorobenzonitrile

Chemical Properties

Melting Point: 248-250
Boiling Point: 395.9°Cat760mmHg
Flash Point:193.2°C
Density: 1.62g/cm³
Storage Temp.:Keep Cold
Vapor Pressure: 6.56E-08mmHg at 25°C
Refractive Index: 1.679
PSA: 61.69000
LogP: 1.09410

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