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26157-49-3

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26157-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26157-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,1,5 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 26157-49:
(7*2)+(6*6)+(5*1)+(4*5)+(3*7)+(2*4)+(1*9)=113
113 % 10 = 3
So 26157-49-3 is a valid CAS Registry Number.

26157-49-3Relevant articles and documents

Non-reductive decyanation reactions of disubstituted malononitrile derivatives promoted by NaHMDS

Domon, Daisuke,Iwakura, Masaru,Tanino, Keiji

, p. 1957 - 1960 (2017/04/27)

A new method for achieving the decyanation of disubstituted malononitrile derivatives without using reducing agents has been developed. Treatment of a six-membered malononitrile derivative with NaHMDS followed by methanol afforded the corresponding acetonitrile derivative in high yield. The present method was applicable to the decyanation reactions of a variety of malononitriles including four- and five-membered compounds as well as acyclic ones.

CYANOPHOSPHATE: AN EFFICIENT INTERMEDIATE FOR CONVERSION OF CARBONYL COMPOUNDS TO NITRILES

Yoneda, Ryuji,Harusawa, Shinya,Kurihara, Takushi

, p. 3681 - 3684 (2007/10/02)

A novel and high yield conversion of saturated or unsaturated carbonyl compounds to nitriles via cyanophosphates by samarium diiodide in the presence of tert-butanol is described.

2,6-Piperidinediones, I: Synthesis of the Racemates and Enantiomers of 3,3-Disubstituted 2,6-Piperidinediones

Knabe, Joachim,Reischig, Dirk

, p. 353 - 362 (2007/10/02)

The synthesis of the racemates and the enantiomers of the 3,3-disubstituted 2,6-piperidinediones 3a-3g is performed in three ways, depending on the C-3 substituents.The 3-cyclohexylpiperidinedione 3h is obtained as racemic and optically active compound by

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