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98664-40-5

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98664-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98664-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,6 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98664-40:
(7*9)+(6*8)+(5*6)+(4*6)+(3*4)+(2*4)+(1*0)=185
185 % 10 = 5
So 98664-40-5 is a valid CAS Registry Number.

98664-40-5Relevant articles and documents

A straightforward access to 3-trifluoromethyl-1H-indazoles via (3+2)-cycloaddition of arynes with nitrile imines derived from trifluoroacetonitrile

Kowalczyk, Anna,Utecht-Jarzyńska, Greta,Mlostoń, Grzegorz,Jasiński, Marcin

, (2020/12/15)

In situ generated arynes react with nitrile imines derived from trifluoroacetonitrile at 0 °C in THF solutions yielding 3-trifluoromethyl-1H-indazole derivatives as the only intermolecular products. The reaction corresponds the expected (3 + 2)-cycloaddit

Novel trifluoromethylated spiro-1,3,4-thiadiazoles via [3+2]-cycloadditions of 2,3-diphenylcyclopropenethione with selected in situ-generated nitrile imines derived from trifluoroacetonitrile

Utecht-Jarzyńska, Greta,Jasiński, Marcin,?wia?tek, Kamil,Mlostoń, Grzegorz,Heimgartner, Heinz

, p. 251 - 262 (2020/02/03)

The in situ-generated N-aryl nitrile imines derived from trifluoroacetonitrile react efficiently with 2,3-diphenylcyclopropenethione to give spirocyclic 1,3,4-thiadiazole derivatives as products of a regio- and chemoselective [3+2]-cycloaddition in good t

Polysubstituted 3-trifluoromethylpyrazoles: Regioselective (3 + 2)-cycloaddition of trifluoroacetonitrile imines with enol ethers and functional group transformations

Utecht, Greta,Fruziński, Andrzej,Jasiński, Marcin

, p. 1252 - 1257 (2018/03/06)

Non-catalysed addition of trifluoroacetonitrile imines to enol ethers provided fully regioselectively (3 + 2)-cycloadducts, which either spontaneously or via Br?nsted acid-induced elimination of ROH molecules led to the formation of 3-trifluoromethylated

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