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102839-33-8

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102839-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102839-33-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,8,3 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 102839-33:
(8*1)+(7*0)+(6*2)+(5*8)+(4*3)+(3*9)+(2*3)+(1*3)=108
108 % 10 = 8
So 102839-33-8 is a valid CAS Registry Number.

102839-33-8Relevant articles and documents

Highly Selective Methods for α-Alkenylation and α-Arylation of Ketones via Palladium- or Nickel-Catalyzed Cross Coupling

Negishi, Ei-ichi,Akiyoshi, Kazunari

, p. 1007 - 1010 (2007/10/02)

Two procedures for α-alkenylation and α-arylation of ketones, that permit, for the first time, introduction of a stereo-defined alkenyl group (E or Z) in the α-position of cyclic ketones in high yields with essentially complete retention (>98percent) of the alkenyl stereochemistry are reported.Furthermore, the one that is represented by Eq.2 permits complete control of regiochemistry as well.

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