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1333171-42-8

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1333171-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1333171-42-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,3,1,7 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1333171-42:
(9*1)+(8*3)+(7*3)+(6*3)+(5*1)+(4*7)+(3*1)+(2*4)+(1*2)=118
118 % 10 = 8
So 1333171-42-8 is a valid CAS Registry Number.

1333171-42-8Relevant articles and documents

Copper-Catalyzed Propargylation of Nitroalkanes

Kim, Raphael S.,Dinh-Nguyen, Linh V.,Shimkin, Kirk W.,Watson, Donald A.

, p. 8106 - 8110 (2020)

Using a commercially available, inexpensive, and abundant copper catalyst system, an efficient α-functionalization of nitroalkanes with propargyl bromides is now established. This mild and robust method is highly functional group tolerant and provides straightforward access to complex secondary and tertiary homopropargylic nitroalkanes. Moreover, the utility of these α-propargylated nitroalkanes is demonstrated through downstream functionalization to biologically relevant, five-membered N-heterocycles such as pyrroles and 2-pyrrolines.

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