161809-65-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161809-65-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,0 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161809-65:
(8*1)+(7*6)+(6*1)+(5*8)+(4*0)+(3*9)+(2*6)+(1*5)=140
140 % 10 = 0
So 161809-65-0 is a valid CAS Registry Number.
161809-65-0Relevant articles and documents
Synthesis of CF3-Substituted Quinolines from β-Chloro-β-trifluoromethyl-vinylaldehydes. I.
Greif, Dieter,Riedel, Dirk,Feindt, Andreas,Pulst, Manfred
, p. 34 - 37 (1995)
3-(Trifluoromethyl)-acroleines 2 have been synthesized through VILSMEIER's reaction from α-Trifluoromethylketones 1.The reaction of 2 with anilines and naphthylamines gives in good yields 2-trifluoromethylquinolines 4 and benzoquinolines 5.
