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127983-45-3

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127983-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127983-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,9,8 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127983-45:
(8*1)+(7*2)+(6*7)+(5*9)+(4*8)+(3*3)+(2*4)+(1*5)=163
163 % 10 = 3
So 127983-45-3 is a valid CAS Registry Number.

127983-45-3Relevant articles and documents

Synthesis and Cycloaddition of 6-Substituted-3,4,5,6-tetrahydropyridine 1-oxides

Ali, Sk. Asrof

, p. 301 - 317 (2007/10/02)

A study of the regiochemical behaviour of the peracid induced ring opening of several hexahydro-2H-isoxazolopyridines (4), leading mainly to ketonitrones (6), has been carried out.Mercury(II) oxide oxidation of unsymmetrical N-hydroxypiperidines (1

Nitrone Cycloaddition: Peracid Oxidation of Perhydro-1,2-oxazolooxazines

Ali, Sk. Asrof,Al-Muallem, Hasan A.

, p. 7373 - 7384 (2007/10/02)

Regiochemistry of peracid induced ring opening of perhydro-1,2-oxazolooxazines (2) and (6) in aprotic solvent is dictated by orientation of lone pair of electrons on nitrogen.In contrast to the case with the corresponding hexahydro-2H-isoxazol

Nitrone Cycloadditions: Synthesis of (+/-)-Andrachamine

Carruthers, William,Coggins, Peter,Weston, John B.

, p. 2323 - 2327 (2007/10/02)

The usefulness of the cycloaddition of alkenes to 2-alkyl-2,3,4,5-tetrahydropyridine oxides for the preparation of trans-2,6-dialkylpiperidines is confirmed by a stereoselective synthesis of (+/-)-andrachamine.Peroxy acid oxidation of 9-oxa-1-azabicyclononanes does not lead regioselectively to the corresponding 2-alkyl-2,3,4,5-tetrahydropyridine oxide, as had previously been claimed.

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