143232-22-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143232-22-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,3 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143232-22:
(8*1)+(7*4)+(6*3)+(5*2)+(4*3)+(3*2)+(2*2)+(1*2)=88
88 % 10 = 8
So 143232-22-8 is a valid CAS Registry Number.
143232-22-8Relevant articles and documents
2-Alkylindoles via Wittig olefination of indole-2-aldehyde
Sadanandan, E. V.,Vedachalam, M.,Srinivasan, P. C.
, p. 481 - 483 (2007/10/02)
Oxidation of 3-phenylthio-2-phenylthiomethylindole (1) with N-bromosuccinimide affords 3-phenylthioindole-2-aldehyde (3) which undergoes Wittig reaction to give 2-vinyl derivatives (4a-c).The latter afford 2-alkylindoles (5a-c) upon Raney nickel treatment.
