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109103-59-5

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109103-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109103-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,0 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109103-59:
(8*1)+(7*0)+(6*9)+(5*1)+(4*0)+(3*3)+(2*5)+(1*9)=95
95 % 10 = 5
So 109103-59-5 is a valid CAS Registry Number.

109103-59-5Downstream Products

109103-59-5Relevant articles and documents

Palladium-mediated functionalization of heteroaromatic cations: Comparative study on quinolizinium cations

Garcia-Cuadrado, Domingo,Cuadro, Ana M.,Barchin, Bernardo M.,Nunez, Ana,Caneque, Tatiana,Alvarez-Builla, Julio,Vaquero, Juan J.

, p. 7989 - 7995 (2006)

An efficient palladium-catalyzed cross-coupling reaction on heteroaromatic cations is described. A comparative study of the Stille and Suzuki reactions shows that only the Stille reaction is able to produce an efficient C-C bond formation between any of the four isomeric bromoquinolizinium bromides and a variety of stannanes. In the presence of the catalysts Pd(PPh3)4 or Pd2(dba)3P(o-Tol)3, vinyl, ethynyl, aryl, and heteroaryl groups are successfully incorporated into the quinolizinium system in satisfactory yields under mild reaction conditions. This procedure represents a marked improvement on the functionalization of this class of heteroaromatic cation.

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