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51694-16-7

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51694-16-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51694-16-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,6,9 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 51694-16:
(7*5)+(6*1)+(5*6)+(4*9)+(3*4)+(2*1)+(1*6)=127
127 % 10 = 7
So 51694-16-7 is a valid CAS Registry Number.

51694-16-7Relevant articles and documents

Metal-Free ipso -Selenocyanation of Arylboronic Acids Using Malononitrile and Selenium Dioxide

Broggi, Julie,Kosso, Anne Roly Obah,Redon, Sébastien,Vanelle, Patrice

, p. 3758 - 3764 (2019)

The first ipso -selenocyanation of arylboronic acids is achieved using selenium dioxide and malononitrile under mild conditions. The reaction is successful even without metal or base in DMSO. The major advantages of this new method are an easy set-up, excellent yields, and the use of odorless and inexpensive selenium reagents. Basic conditions subsequently afford new access to diaryldiselenides in good yields without isolating the organoselenocyanate intermediates.

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