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216064-18-5

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216064-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216064-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,0,6 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 216064-18:
(8*2)+(7*1)+(6*6)+(5*0)+(4*6)+(3*4)+(2*1)+(1*8)=105
105 % 10 = 5
So 216064-18-5 is a valid CAS Registry Number.

216064-18-5Relevant articles and documents

[Cu(NHC)]-Catalyzed C-H Allylation and Alkenylation of both Electron-Deficient and Electron-Rich (Hetero)arenes with Allyl Halides

Xie, Weilong,Chang, Sukbok

, p. 1876 - 1880 (2016)

New reactivity of a [Cu(NHC)] (NHC=N-heterocyclic carbene) catalyst is disclosed for the efficient C-H allylation of polyfluoroarenes using allyl halides in benzene at room temperature. The same catalyst system also promotes an isomerization-induced alkenylation of initially the generated allyl arenes when the reaction is run in tetrahydrofuran. Significantly, not only electron-deficient but also electron-rich (hetero)arenes undergo this double-bond migration process, thus leading to alkenylated products. The present system features mild reaction conditions, broad scope with respect to the arene substrates and allyl halide reactants, good functional-group tolerance, and high stereoselectivity.

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