142688-33-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142688-33-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,8 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142688-33:
(8*1)+(7*4)+(6*2)+(5*6)+(4*8)+(3*8)+(2*3)+(1*3)=143
143 % 10 = 3
So 142688-33-3 is a valid CAS Registry Number.
142688-33-3Relevant articles and documents
Tandem coupling of 5-bromo-3-iodo-1-tosylindole with trimethylarylstannanes and aryl boronic acids
Yang,Martin
, p. 1757 - 1762 (2007/10/02)
Palladium(0)-catalyzed coupling of 5-bromo-3-iodo-1-tosylindole with trimethylarylstannanes afforded 3-aryl-5-bromo-1-tosylindoles which were then coupled with aryl boronic acids to give 3,5-diarylated indoles in moderate to excellent yields.