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244277-79-0

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244277-79-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 244277-79-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,4,2,7 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 244277-79:
(8*2)+(7*4)+(6*4)+(5*2)+(4*7)+(3*7)+(2*7)+(1*9)=150
150 % 10 = 0
So 244277-79-0 is a valid CAS Registry Number.

244277-79-0Downstream Products

244277-79-0Relevant articles and documents

Highly chemo- and regioselective C-P cross-coupling reaction of quinone imine ketals with Ar2P(O)H to construct: Ortho -amino triarylphosphine derivatives

Liu, Teng,Li, Yongqin,Cheng, Feixiang,Shen, Xianfu,Liu, Jianjun,Lin, Jun

supporting information, p. 3536 - 3541 (2019/07/10)

A highly chemo- and regioselective approach for the construction of ortho-amino triarylphosphine oxides has been achieved through a C-P cross-coupling reaction involving quinone imine ketals (QIKs) with Ar2P(O)H and catalyzed via a Lewis base. This alternative protocol provided a wide substrate scope with excellent yields (82-95%), and a variety of ortho-amino triarylphosphines were obtained with high yields (87-95%) via further reductive reaction. Furthermore, this reaction could be scaled-up and several synthetic transformations were accomplished for the construction of functionalized organophosphorus.

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