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861342-91-8

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861342-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 861342-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,3,4 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 861342-91:
(8*8)+(7*6)+(6*1)+(5*3)+(4*4)+(3*2)+(2*9)+(1*1)=168
168 % 10 = 8
So 861342-91-8 is a valid CAS Registry Number.

861342-91-8Relevant articles and documents

A regioselective palladium catalyzed synthesis of benzimidazoles and azabenzimidazoles

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Page/Page column 13-14, (2008/06/13)

The present invention relates to a process for the regioselective synthesis of compounds of the formula I, wherein R0; R1; R2; R3; R4; R5; A1; A2; A3; A4, Q and J have the meanings indicated in the claims. The present invention provides a direct palladium catalyzed, regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides useful for the production of pharmaceuticals, diagnostic agents, liquid crystals, polymers, herbicides, fungicidals, nematicidals, parasiticides, insecticides, acaricitdes and arthropodicides.

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