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25076-84-0

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25076-84-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25076-84-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,0,7 and 6 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 25076-84:
(7*2)+(6*5)+(5*0)+(4*7)+(3*6)+(2*8)+(1*4)=110
110 % 10 = 0
So 25076-84-0 is a valid CAS Registry Number.

25076-84-0Relevant articles and documents

Formation of azomethine ylids by thermolysis of oxazolidines. Study of the reaction in solution and in the gaseous phase

Bureau, R.,Mortier, J.,Joucla, M.

, p. 584 - 596 (2007/10/02)

Thermolysis of oxazolidines leads to azomethine ylids via cycloreversion.In the liquid phase, these intermediates then give 1-3 dipolar cycloaddition; in the gaseous phase, they lead to aziridines.With an alkyl group in position 2, we observed also the formation of enamines.The effect of substituents on both the cycloreversion reaction and the evolution of azomethine ylids was studied.The mechanism of the process tautomerism aziridine -> azomethine ylid -> enamine is discussed.Keywords - azomethine ylids / oxazolidines / cycloreversion / aziridines / enamines / tautomerism

Enamine synthesis using the Horner-Wittig reaction. Part 1. (Aminomethyl)diphenylphosphine oxides, new formyl anion equivalents

Broekhof, N. L. J. M.,Gen, A. van der

, p. 305 - 312 (2007/10/02)

Using the Horner-Wittig reagent (morpholinomethyl)diphenylphosphine oxide (7), aromatic, aliphatic and α,β-unsaturated aldehydes are converted into morpholino enamines of their homologous aldehydes.With diphenylphosphine oxide (12), the same aldehydes, together with the ketones (cyclic as well as acyclic, both saturated and α,β-unsaturated), are converted into enamines of their homologous aldehydes.Both types of enamines are converted into the corresponding aldehydes by mild, acid-catalyzed hydrolysis, showing the utility of 7 and 12, as formyl anion equivalents.Preparation of each geometrical isomer of the N-methylanilino enamines is possible since the intermediate diastereoisomeric adducts 13 can be separated.

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