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1402918-49-3

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1402918-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1402918-49-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,9,1 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1402918-49:
(9*1)+(8*4)+(7*0)+(6*2)+(5*9)+(4*1)+(3*8)+(2*4)+(1*9)=143
143 % 10 = 3
So 1402918-49-3 is a valid CAS Registry Number.

1402918-49-3Downstream Products

1402918-49-3Relevant articles and documents

Chichibabin-type direct alkylation of pyridyl alcohols with alkyl lithium reagents

Jeffrey, Jenna L.,Sarpong, Richmond

, p. 5400 - 5403 (2012)

Direct C(6) alkylation of pyridyl alcohols can be achieved following an initial deprotonation of the hydroxy group. This transformation, which is believed to occur by a Chichibabin-type alkylation, avoids lateral deprotonation prior to pyridine ring alkylation and gives increased regioselectivity for C(6) over C(4) alkylation.

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