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144757-84-6

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144757-84-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144757-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,7,5 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 144757-84:
(8*1)+(7*4)+(6*4)+(5*7)+(4*5)+(3*7)+(2*8)+(1*4)=156
156 % 10 = 6
So 144757-84-6 is a valid CAS Registry Number.

144757-84-6Downstream Products

144757-84-6Relevant articles and documents

A Tf2O-Promoted Synthesis of Functionalized Quinolines from Ketoximes and Alkynes

Zheng, Weiping,Yang, Weiguang,Luo, Dongping,Min, Lin,Wang, Xinyan,Hu, Yuefei

supporting information, p. 1995 - 1999 (2019/03/13)

A new general synthesis of quinolines was developed from ketoximes and alkynes in the presence of Tf2O. It offered the first direct synthesis of quinolines by using the nitrilium salts generated in situ from a Tf2O-promoted Beckmann rearrangement of ketoximes under very easy conditions. (Figure presented.).

On the reaction of N-arylnitrilium salts with acetylenes: Synthesis of substituted quinolines

Al-Talib,Jochims,Wang,Hamed,Ismail

, p. 875 - 878 (2007/10/02)

Quinolinium salts 3 are obtained from the reaction of N-arylnitrilium salts 1 with acetylenes 2. With aqueous base the salts 3 are transformed into the corresponding quinolines 4.

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