883244-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 883244-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,3,2,4 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 883244-99:
(8*8)+(7*8)+(6*3)+(5*2)+(4*4)+(3*4)+(2*9)+(1*9)=203
203 % 10 = 3
So 883244-99-3 is a valid CAS Registry Number.
883244-99-3Relevant academic research and scientific papers
Selective syntheses of benzoxazoles and N-(2-hydroxyaryl)pyrrolidin-2-ones from the corresponding cyclopropyl amides with PPh3/CX4
Yang, Yong-Hua,Shi, Min
, p. 2420 - 2427 (2007/10/03)
Benzoxazoles 2 can be smoothly synthesized by treatment of starting materials of N-(2-hydroxyaryl) cyclopropyl amides 1 with PPh3/ CCl4 in acetonitrile in good yields. When PPh3/CBr 4/MS 4 ? was used in the reac