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6-hexyl-7-hydroxy-3-(5-phenyl-1,3,4-oxadiazol-2-yl)-2H-chromen-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

252551-71-6

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252551-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 252551-71-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,5,5 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 252551-71:
(8*2)+(7*5)+(6*2)+(5*5)+(4*5)+(3*1)+(2*7)+(1*1)=126
126 % 10 = 6
So 252551-71-6 is a valid CAS Registry Number.

252551-71-6Downstream Products

252551-71-6Relevant articles and documents

A new pathway to 3-hetaryl-2-oxo-2H-chromenes: On the proposed mechanisms for the reaction of 3-carbamoyl-2-iminochromenes with dinucleophiles

Kovalenko, Sergiy M.,Bylov, Igor E.,Sytnik, Konstantyn M.,Chernykh, Valentyn P.,Bilokin, Yaroslav V.

, p. 1146 - 1165 (2007/10/03)

The present account summarizes the author's studies to elucidate the mechanisms of the recently reported rearrangements resulting from inter- and/or intramolecular reactions of 2-imino-2H-chromene-3-carboxamides with different dinucleophiles.

Recyclization of 2-imino-2H-1-benzopyrans by the action of nucleophilic reagents 4. Use of 2-(N-aroylhydrazono)coumarin-3-carboxamides for the synthesis of 3-(1,3,4-oxadiazol-2-YL)coumarins

Kovalenko,Sytnik,Nikitchenko,Rusanova,Chernykh,Porokhnyak

, p. 167 - 170 (2007/10/03)

A new method for the synthesis of 3-(1,3,4-oxadiazol-2-yl)coumarins is proposed. It is based on the recyclization of 2-(N-aroylhydrazono)coumarin-3-carboxamides, which are readily obtained by the reaction of 2-iminocoumarin-3-carboxamides with arenecarboxylic hydrazides in an acidic medium. Advantages of the given method over alternative synthetic schemes were shown. Proposals on the mechanism of reaction were made. 1999 KluwerAcademic/Plenum.

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