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4979-02-6

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4979-02-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4979-02-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,7 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4979-02:
(6*4)+(5*9)+(4*7)+(3*9)+(2*0)+(1*2)=126
126 % 10 = 6
So 4979-02-6 is a valid CAS Registry Number.

4979-02-6Downstream Products

4979-02-6Relevant articles and documents

Low catalyst loadings for copper-catalyzed O-arylation of phenols with aryl and heteroaryl halides under mild conditions

Yong, Fui-Fong,Teo, Yong-Chua,Yan, Yaw-Kai,Chua, Guan-Leong

supporting information; experimental part, p. 101 - 106 (2012/02/03)

A practical and mild strategy has been developed for the cross-coupling of O-arylation of phenol with differently substituted aryl halides and heteroaryl iodides using low catalyst loading of copper iodide under low operating temperature in DMF with TMHD as the ligand and Cs2CO3 as the base. This method tolerates a variety of functional groups including sterically hindered phenols and heteroaryl iodides to afford products in good to excellent yields (up to 95%). Georg Thieme Verlag Stuttgart. New York.

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