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1021934-32-6

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1021934-32-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1021934-32-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,9,3 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1021934-32:
(9*1)+(8*0)+(7*2)+(6*1)+(5*9)+(4*3)+(3*4)+(2*3)+(1*2)=106
106 % 10 = 6
So 1021934-32-6 is a valid CAS Registry Number.

1021934-32-6Relevant articles and documents

Catalytic transformation of esters of 1,2-azido alcohols into α-amido ketones

Kim, Yongjin,Pak, Han Kyu,Rhee, Young Ho,Park, Jaiwook

supporting information, p. 6549 - 6552 (2016/06/01)

The esters of 1,2-azido alcohols were transformed into α-amido ketones without external oxidants through the Ru-catalyzed formation of N-H imines with the liberation of N2 followed by intramolecular migration of the acyl moiety. A wide range of α-amido ketones were obtained, and one-pot transformation into the corresponding oxazoles (or a thiazole) was demonstrated.

Et2Zn-mediated rearrangement of bromohydrins

Li, Lezhen,Cai, Peijie,Guo, Qingxiang,Xue, Song

, p. 3516 - 3522 (2008/09/20)

(Chemical Equation Presented) A simple and highly efficient method for the rearrangement of bromohydrins mediated by Et2Zn to synthesize carbonyl compounds was described. Various β-bromo alcohols were treated with 0.6 equiv of Et2Zn to form a zinc complex in CH 2Cl2 at room temperature for 2 h, followed by 1,2-migration to give the corresponding carbonyl compounds. This remarkable and clean rearrangement is general for acyclic and cyclic bromohydrins, and a variety of ring-expansive and -contractive carbonyl compounds were obtained in good to excellent yields according to the feature of the starting bromohydrins. The functional group tolerance of organozinc reagents in this reaction will be useful in organic synthesis. The scope and limitations of this rearrangement process were also investigated.

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