91890-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91890-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,9 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91890-23:
(7*9)+(6*1)+(5*8)+(4*9)+(3*0)+(2*2)+(1*3)=152
152 % 10 = 2
So 91890-23-2 is a valid CAS Registry Number.
91890-23-2Relevant academic research and scientific papers
A NEW SYNTHESIS OF α,β-UNSATURATED KETONES. ALLYLIC ALKYLATION OF 1-ISOCYANO-1-TOSYLALKENES
Moskal, Janusz,Leusen, Albert M. van
, p. 2585 - 2588 (2007/10/02)
Ketones (1) are homologated to enones 2 by alkylating (introduction of R3) the condensation products 4 (derived from 1 and tosylmethyl isocyanide), followed by acid catalyzed hydrolysis.
