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55693-21-5

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55693-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55693-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,9 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55693-21:
(7*5)+(6*5)+(5*6)+(4*9)+(3*3)+(2*2)+(1*1)=145
145 % 10 = 5
So 55693-21-5 is a valid CAS Registry Number.

55693-21-5Upstream product

55693-21-5Downstream Products

55693-21-5Relevant academic research and scientific papers

Factors affecting reactions of trialkylcyanoborates with imidoyl chlorides/trifluoroacetic anhydride

Jones, Dyfyr Heulyn,Smith, Keith,Elliott, Mark C.,El-Hiti, Gamal A.

, p. 6285 - 6289 (2015)

Abstract Methods for generating tert-alkyl organoboron species are in high demand as they are invaluable intermediates for the synthesis of quaternary carbon centres. Herein we report investigations into generation of tert-alkyl organoboron species using imidoyl chlorides as reagents in the organoboron cyanidation reaction. Although alkenyl side-products predominate in particularly hindered cases, tert-alkyl organoboron species can be successfully generated for less hindered examples.

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