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859033-51-5

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859033-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 859033-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,0,3 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 859033-51:
(8*8)+(7*5)+(6*9)+(5*0)+(4*3)+(3*3)+(2*5)+(1*1)=185
185 % 10 = 5
So 859033-51-5 is a valid CAS Registry Number.

859033-51-5Relevant articles and documents

Beyond a Protecting Reagent: DMAP-Catalyzed Cyclization of Boc-Anhydride with 2-Alkenylanilines

Huang, Ya-Nan,Li, Yin-Long,Li, Jian,Deng, Jun

, p. 4645 - 4653 (2016)

A novel rapid synthesis of quinolines from 2-alkenylanilines has been described; the reaction involves an unexpected DMAP-catalyzed cyclization of 2-alkenylanilines with di-tert-butyl dicarbonate (Boc2O, 2.0 equiv), and a series of tert-butyl quinolin-2-yl carbonate with various functional groups have been synthesized in good yields under mild conditions. Furthermore, the tert-butyl quinolin-2-yl carbonate can be easily converted into corresponding quinolinones and 2-(pseudo)haloquinolines.

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