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1421623-39-3

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1421623-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421623-39-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,6,2 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1421623-39:
(9*1)+(8*4)+(7*2)+(6*1)+(5*6)+(4*2)+(3*3)+(2*3)+(1*9)=123
123 % 10 = 3
So 1421623-39-3 is a valid CAS Registry Number.

1421623-39-3Downstream Products

1421623-39-3Relevant articles and documents

Ruthenium-catalyzed direct ortho-alkynylation of arenes with chelation assistance

Ano, Yusuke,Tobisu, Mamoru,Chatani, Naoto

supporting information, p. 2763 - 2767 (2013/02/21)

The ruthenium-catalyzed direct alkynylation of arenes with the chelation assistance of nitrogen-containing heterocycles including pyridine, pyrimidine, pyrazole, and imidazole are described. The alkynylation is successful even in the presence of an acidic N-H bond. Broad compatibility with functional groups is observed under catalytic conditions. The obtained alkynylated products could serve as precursors for polycyclic heteroarenes. Copyright

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