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109057-76-3

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109057-76-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109057-76-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,5 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 109057-76:
(8*1)+(7*0)+(6*9)+(5*0)+(4*5)+(3*7)+(2*7)+(1*6)=123
123 % 10 = 3
So 109057-76-3 is a valid CAS Registry Number.

109057-76-3Upstream product

109057-76-3Relevant articles and documents

Reactions of 1-nitrocyclohexene with N,N-binucleophiles

Efremova,Vakulenko,Lysenko,Bushmarinov,Lapshina,Berkova,Berestovitskaya

experimental part, p. 2298 - 2305 (2011/04/14)

A modification of 1-nitrocyclohexene synthesis is proposed; its reaction with phenylhydrazine and benzoic acid hydrazide is shown to afford monoadducts, and with hydrazine hydrate, bisaduct. With diphenylguanidine occurs heterocyclization to 1-phenyl-2-N-phenylamino-4,5,6,7-tetrahydrobenzimidazole, whose structure is confirmed by the X-ray diffraction data. The analysis performed for this compound of the electron density distribution function in the crystal made it possible to estimate the charge distribution, π-electrons delocalization nature, and the role of N-H···N, C-H···H-C and C-H···C interactions in the formation of the crystal packing. Pleiades Publishing, Ltd., 2010.

A General and Useful Copper(II)-promoted Iodofunctionalization of Unsaturated Systems

Barluenga, Jose,Rodriguez, Miguel A.,Campos, Pedro J.,Asensio, Gregorio

, p. 1491 - 1492 (2007/10/02)

A mixture of iodine and CuO*HBF4 reacts stereospecifically with olefins in the presence of a wide variety of nucleophiles (NaNO2, NaSO2Ar, NaI, Et3SiH, MeOPh and H2O) to give the corresponding 2-functionalized iodo compounds; the same reagents also cause iodofunctionalization of 1,3-dienes and acetylenes.

I(py)2BF4, ein neues Reagens: allgemeine Methode fuer die 1,2-Iodfunktionalisierung von Olefinen

Barluenga, Jose,Gonzales, Jose M.,Campos, Pedro J.,Asensio, Gregorio

, p. 341 - 342 (2007/10/02)

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