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1259890-94-2

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1259890-94-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1259890-94-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,9,8,9 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1259890-94:
(9*1)+(8*2)+(7*5)+(6*9)+(5*8)+(4*9)+(3*0)+(2*9)+(1*4)=212
212 % 10 = 2
So 1259890-94-2 is a valid CAS Registry Number.

1259890-94-2Downstream Products

1259890-94-2Relevant articles and documents

Site-selective cross-coupling of dichlorinated benzo-fused nitrogen-heterocycles with Grignard reagents

Konishi, Hideyuki,Itoh, Tatsuya,Manabe, Kei

, p. 1255 - 1258 (2010)

Site-selective cross-coupling of dihaloarenes constitutes a useful method for synthesis of multi-substituted arenes. In this paper, we report the site-selective cross-coupling of dichlorinated benzo-fused nitrogen-heterocycles having two chloro groups on the benzene ring. These dichlorinated heterocycles reacted with Grignard reagents in the presence of PdCl2(PCy 3)2 at the positions ortho to the nitrogen-based substituents with high selectivities. A mechanism in which interaction between Lewis acidic Mg and Cl of the ortho position facilitates C-Cl bond cleavage is proposed.

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