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69672-52-2

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69672-52-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69672-52-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,7 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 69672-52:
(7*6)+(6*9)+(5*6)+(4*7)+(3*2)+(2*5)+(1*2)=172
172 % 10 = 2
So 69672-52-2 is a valid CAS Registry Number.

69672-52-2Relevant articles and documents

A new paradigm for carbon-carbon bond formation: Aerobic, copper-templated cross-coupling

Villalobos, Janette M.,Srogl, Jiri,Liebeskind, Lanny S.

, p. 15734 - 15735 (2008/09/20)

Thiol esters and boronic acids react to produce ketones under aerobic conditions in the presence of catalytic quantities of a CuI or CuII salt. The reaction occurs at reasonable rates between room temperature and 50 °C at neutral pH using thiol esters derived from bulky 2° amides of thiosalicylamides such as those based on N-tert-butyl-2-mercaptobenzamide. In this mechanistically unprecedented reaction system, the carbon-carbon bond formation occurs through templating of the thiol ester and the boronic acid at copper; the system is rendered catalytic in copper under the aerobic conditions. Copyright

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