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28561-64-0

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28561-64-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28561-64-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,5,6 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28561-64:
(7*2)+(6*8)+(5*5)+(4*6)+(3*1)+(2*6)+(1*4)=130
130 % 10 = 0
So 28561-64-0 is a valid CAS Registry Number.

28561-64-0Relevant articles and documents

Palladium Catalyzed Direct Acylation of Iodo-Acetanilides/Iodo-Phenyl Acetates: Domino One-Pot Synthesis of 2-Quinolinones

Basuli, Scuhand,Satyanarayana, Gedu

, p. 957 - 970 (2017/12/07)

Pd-catalyzed direct acylation reaction of iodoacetanilides/iodophenyl acetates with aldehydes is presented. Simple, bench-top aldehydes were used as non-toxic acylating agents. This protocol comprises direct coupling with aldehydes without activating the carbonyl group and without directing group assistance. The strategy was applied to a domino one-pot synthesis of 2-quinolinones through acylation and intramolecular aldol condensation. Significantly, the strategy was extended to the domino one-pot synthesis of drugs and bioactive compounds.

Improved synthesis of 2-amino-5-chlorophenyl-2'-pyrrylketone, a key intermediate in the synthesis of HIV Tat-antagonists

Okabe,Sun

, p. 1861 - 1866 (2007/10/02)

The reaction of a 2-phenylbenzoxazinone with pyrryl Grignard reagent is very efficient compared with that of a 2-methylbenzoxazinone. The title compound was prepared from 5-chloroanthranilic acid via the 2-phenylbenzoxazinone in 92% overall yield. This method was also successfully applied to the synthesis of 2-aminobenzophenones.

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