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957785-22-7

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957785-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 957785-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,7,8 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 957785-22:
(8*9)+(7*5)+(6*7)+(5*7)+(4*8)+(3*5)+(2*2)+(1*2)=237
237 % 10 = 7
So 957785-22-7 is a valid CAS Registry Number.

957785-22-7Relevant articles and documents

Synthetic and mechanistic studies on the solvent-dependent copper-catalyzed formation of indolizines and chalcones

Albaladejo, María José,Alonso, Francisco,González-Soria, María José

, p. 3446 - 3456 (2015/06/16)

Copper nanoparticles supported on activated carbon have been found to catalyze the multicomponent synthesis of indolizines from pyridine-2-carbaldehyde derivatives, secondary amines, and terminal alkynes in dichloromethane; in the absence of solvent, howe

Total synthesis of streptonigrone

Chan, Bryan K.,Ciufolini, Marco A.

, p. 8489 - 8495 (2008/02/13)

(Chemical Equation Presented) A total synthesis of streptonigrone, 1, is described, which incorporates a one-step synthesis of substituted pyridones devised in our laboratory. Other aspects of the synthesis that differentiate the present approach from previous ones are the use of a Conrad-Limpach reaction, rather than the customary Friedlaender methodology, to assemble the quinoline segment of 1, and the implementation of an anionic sequence for the functionalization of a key pyridone intermediate.

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