71097-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71097-53-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,9 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71097-53:
(7*7)+(6*1)+(5*0)+(4*9)+(3*7)+(2*5)+(1*3)=125
125 % 10 = 5
So 71097-53-5 is a valid CAS Registry Number.
InChI:InChI=1/C10H14O2/c1-7(6-8(2)11)10-5-4-9(3)12-10/h4-5,7H,6H2,1-3H3
71097-53-5Relevant academic research and scientific papers
CONJUGATE ADDITION OF FURANS TO ENONES OR THEIR SYNTHETIC EQUIVALENTS
Poirier, Jean-Marie,Dujardin, Gilles
, p. 399 - 407 (2007/10/02)
Conjugate addition of furans 5 to enones 3 in the presence of an alcohol and boron trifluoride etherate is described.A same reaction product is obtained with hemiacetal vinylogs 1, synthetic equivalents of enones 3.Acidic treatment of adducts 6 and 7 leads to tri- and tetraketones 15 and 16.
