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158583-41-6

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158583-41-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158583-41-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,8 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 158583-41:
(8*1)+(7*5)+(6*8)+(5*5)+(4*8)+(3*3)+(2*4)+(1*1)=166
166 % 10 = 6
So 158583-41-6 is a valid CAS Registry Number.

158583-41-6Relevant articles and documents

Synthesis of Organophosphorus Compounds through Copper-Catalyzed Annulation Involving C-O and C-P Bond Formations

Li, Xue-Song,Han, Ya-Ping,Zhu, Xin-Yu,Li, Ming,Wei, Wan-Xu,Liang, Yong-Min

, p. 11636 - 11643 (2017/11/10)

A novel copper(II) trifluoromethanesulfonate-catalyzed, high-efficiency, and atom-economical synthesis of valuable organophosphorus compounds via cascade annulation of propargylic alcohols with diphenylphosphine oxide is described. This protocol, which has a good functional-group compatibility and insensitivity to an ambient atmosphere, provides a simple and direct pathway to the products, organophosphorus compounds, in good yields under mild conditions. The method could be efficiently scaled up to gram scale, thus highlighting a potential application of this methodology.

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