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1434057-04-1

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1434057-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1434057-04-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,4,0,5 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1434057-04:
(9*1)+(8*4)+(7*3)+(6*4)+(5*0)+(4*5)+(3*7)+(2*0)+(1*4)=131
131 % 10 = 1
So 1434057-04-1 is a valid CAS Registry Number.

1434057-04-1Upstream product

1434057-04-1Downstream Products

1434057-04-1Relevant articles and documents

Copper-catalyzed direct aryl quaternization of N-substituted imidazoles to form imidazolium salts

Lv, Taiyong,Wang, Zhi,You, Jingsong,Lan, Jingbo,Gao, Ge

, p. 5723 - 5730 (2013/07/26)

Diaryliodonium salts are employed to directly quaternize N-substituted imidazoles by using a copper catalyst to construct aryl imidazolium salts in moderate to excellent yields. This transformation is tolerant to a broad range of functional groups and provides a straightforward, efficient, and versatile route to synthesize aryl imidazolium as well as triazolium salts, especially the unsymmetric version.

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