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76832-77-4

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76832-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76832-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,8,3 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 76832-77:
(7*7)+(6*6)+(5*8)+(4*3)+(3*2)+(2*7)+(1*7)=164
164 % 10 = 4
So 76832-77-4 is a valid CAS Registry Number.

76832-77-4Downstream Products

76832-77-4Relevant articles and documents

Stereoselectivity in the Formation of Heterocyclic Amine Oxides

Shvo, Youval,Kaufman, Edward D.

, p. 2148 - 2152 (1981)

The stereoselectivity of the oxidation of N-alkylpiperidines was studied with the aid of the conformationally biassing 4-tert-butyl substituent.The stereoselectivity was always >95percent and showed little sensitivity to the nature of the N-alkyl substituent.The axial approach was found to be predominating stereochemical oxidation path.A brief study of the effects of solvent, temperature, and oxidant on the stereoselectivity was made.The 1,4-dimethylpiperazine system was investigated, and its oxidation at room temperature resulted in 100percent of trans-1,4-dimethylpiperazine 1,4-dioxide.A method to modulate the stereoselectivity in the formation of saturated heterocyclic amine oxides was developed by inverting the sequence of introduction of the nitrogen substituents.With cis-8-methyl-8-azabicyclononane oxidation is preferred from that side of the molecule which is sterically more hindered.

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