727409-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 727409-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,7,4,0 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 727409-20:
(8*7)+(7*2)+(6*7)+(5*4)+(4*0)+(3*9)+(2*2)+(1*0)=163
163 % 10 = 3
So 727409-20-3 is a valid CAS Registry Number.
InChI:InChI=1/C15H12ClNO3/c1-2-20-15(19)11-5-3-10(4-6-11)14(18)12-7-8-13(16)17-9-12/h3-9H,2H2,1H3
727409-20-3Relevant articles and documents
An efficient synthesis of diaryl ketones by iron-catalyzed arylation of aroyl cyanides
Duplais, Christophe,Bures, Filip,Sapountzis, Ioannis,Korn, Tobias J.,Cahiez, Gerard,Knochel, Paul
, p. 2968 - 2970 (2004)
An alternative to acyl chlorides: Iron(III)-catalyzed arylation of aroyl and heteroaroyl cyanides with aryl magnesium reagents (see example in scheme) provides an easy and mild approach to polyfunctionalized diaryl ketones in yields up to 98%.