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854497-57-7

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854497-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 854497-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,4,9 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 854497-57:
(8*8)+(7*5)+(6*4)+(5*4)+(4*9)+(3*7)+(2*5)+(1*7)=217
217 % 10 = 7
So 854497-57-7 is a valid CAS Registry Number.

854497-57-7Relevant articles and documents

Stereoselective synthesis of enantioenriched acetylenic 1,2-amino alcohols

Chemla, Fabrice,Ferreira, Franck,Gaucher, Xavier,Palais, Laetitia

, p. 1235 - 1241 (2007)

The stereoselective synthesis of enantioenriched anti-and syn-4-aminoalk-1-yn-3-ols is described. Initial reaction of racemic 3-(methoxymethoxy)allenylzinc with enantiopure Ellman's (SS)-(tert- butylsulfinyl)imines was shown to give straightfor

KHSO4-mediated condensation reactions of tert-butanesulfinamide with aldehydes. Preparation of tert-butanesulfinyl aldimines

Huang, Zhiyan,Zhang, Min,Wang, Yin,Qin, Yong

, p. 1334 - 1336 (2007/10/03)

Optically pure tert-butanesulfinyl aldimines 1 were prepared by direct condensation of chiral tert-butanesulfinamide 3 with aldehydes 2 in high yields in the presence of KHSO4. The main advantage of KHSO4 is that it is applicable to the condensation reactions of a variety of aldehydes, including electron deficient and electron rich (hetereo)aromatic aldehydes, as well as aliphatic aldehydes.

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