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1431616-09-9

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1431616-09-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1431616-09-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,6,1 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1431616-09:
(9*1)+(8*4)+(7*3)+(6*1)+(5*6)+(4*1)+(3*6)+(2*0)+(1*9)=129
129 % 10 = 9
So 1431616-09-9 is a valid CAS Registry Number.

1431616-09-9Downstream Products

1431616-09-9Relevant articles and documents

First selective direct mono-arylation of piperidines using ruthenium-catalyzed C-H activation

Schwarz, Maria C.,Dastbaravardeh, Navid,Kirchner, Karl,Schnuerch, Michael,Mihovilovic, Marko D.

, p. 539 - 552 (2013/07/26)

A Ru-catalyzed mono-arylation in α-position of saturated cyclic amines is reported employing a C-H activation protocol. Substitution of the pyridine directing group with a bulky group, e.g., trifluoromethyl in the 3-position, proved to be crucial to avoid bis-arylation. This highly selective transformation can be performed with different amines and arylboronate esters. Additionally, the directing group can be cleaved, taking advantage of an unprecedented detrifluoromethylation reaction.

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