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20355-96-8

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20355-96-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20355-96-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,5 and 5 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20355-96:
(7*2)+(6*0)+(5*3)+(4*5)+(3*5)+(2*9)+(1*6)=88
88 % 10 = 8
So 20355-96-8 is a valid CAS Registry Number.

20355-96-8Relevant academic research and scientific papers

Efficient Synthesis of Phosphonamidates through One-Pot Sequential Reactions of Phosphonites with Iodine and Amines

Chen, Xunwei,Luo, Wenjun,Wang, Yanlin,Li, Zikang,Ma, Xiaorui,Peng, Ai-Yun

, p. 14474 - 14480 (2020/10/06)

A one-pot sequential strategy to construct phosphonamidates has been developed by generating phosphonites in situ from arylmagnesium bromides and triethyl phosphite followed by treatment with iodine and amines. A variety of phosphonamidates were obtained with good to excellent yields at room temperature from easily available materials.

Revisited synthesis of aryl-H-phosphinates

Volle, Jean-Noel,Filippini, Damien,Midrier, Camille,Sobecki, Michal,Drag, Marcin,Virieux, David,Pirat, Jean-Luc

experimental part, p. 2490 - 2494 (2011/09/20)

A systematic study of the reaction conditions for the preparation of pure aryl-H-phosphinate esters, originally developed by Sander and optimized by Petnehazy, is reported. The influence of the reaction concentration has been investigated for the formation of phosphonite intermediates via direct addition of triethyl phosphite to the appropriate Grignard reagent. Subsequent hydrolysis of the phosphonites under acidic conditions gives various aryl-H-phosphinates in high yields and purities. Georg Thieme Verlag Stuttgart, New York.

A direct and new convenient oxidation: Synthesis of substituted arylphosphonates from aromatics

Simeon, Fabrice,Jaffres, Paul-Alain,Villemin, Didier

, p. 10111 - 10118 (2007/10/03)

An easy synthesis of aryl phosphonates by oxidation from aryldichlorophosphines with iodine in good yields is described. Aryldichlorophosphines are obtained by reaction of phosphorous trichloride with some aromatics in presence of various Lewis acids. BiCl3 and Bi(OTf)3 are used for the first time and bismuth trichloride is, for the first time in the case of anisole or thioanisole phosphonylation, used as a true regenerable Lewis acid catalyst in a reaction of direct phosphonylation of aromatics.

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