871565-62-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871565-62-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,5,6 and 5 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 871565-62:
(8*8)+(7*7)+(6*1)+(5*5)+(4*6)+(3*5)+(2*6)+(1*2)=197
197 % 10 = 7
So 871565-62-7 is a valid CAS Registry Number.
871565-62-7Relevant academic research and scientific papers
Halogen-metal exchange/cyclization of iodoketones: A direct synthesis of 3-arylbenzofurans
Kraus, George A.,Schroeder, Jacob D.
, p. 2504 - 2506 (2007/10/03)
The first synthesis of benzofuran 2 was achieved in 17% overall yield in seven steps. The key step was a halogen-metal exchange/cyclization reaction. Several examples of this reaction were reported. Georg Thieme Verlag Stuttgart.
