140701-22-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140701-22-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,7,0 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 140701-22:
(8*1)+(7*4)+(6*0)+(5*7)+(4*0)+(3*1)+(2*2)+(1*2)=80
80 % 10 = 0
So 140701-22-0 is a valid CAS Registry Number.
140701-22-0Relevant academic research and scientific papers
Synthesis of 3-alkyl-3-bromo-1-ethoxycarbonyl-1,3-dihydro-2H-indol-2-ones
Beccalli,Marchesini
, p. 265 - 266 (2007/10/02)
3-Alkyl-1,3-dihydro-2H-indol-2-ones 1 are converted to the coresponding 2-ethoxycarbonyloxy derivatives 2 by reaction with ethyl chloroformate in the presence of triethylamine. Bromination of 2 affords the title compounds in 73-93% yield.
