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5756-03-6

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5756-03-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5756-03-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,5 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5756-03:
(6*5)+(5*7)+(4*5)+(3*6)+(2*0)+(1*3)=106
106 % 10 = 6
So 5756-03-6 is a valid CAS Registry Number.

5756-03-6Relevant articles and documents

Substitution of diarylphosphoryl azides with aliphatic amines catalyzed by simple rare-earth metal salts: Efficient and novel preparation of phosphoryl amides

Peng, Xin-Hua,Bai, Rui,Liu, Shanshan,Li, Zhuo,Jiao, Lin-Yu

, (2021/11/05)

A novel and high efficient protocol was disclosed herein for the rare-earth metal salt-catalyzed substitution of phosphoryl azides with amines. In this homogeneous catalysis system, different diarylphosphoryl azides and aliphatic and aromatic amines were

Zinc-catalyzed transformation of diarylphosphoryl azides to diarylphosphate esters and amides

Ying, Jun,Gao, Qian,Wu, Xiao-Feng

, p. 1540 - 1543 (2020/04/15)

We have developed a facile and efficient procedure for the synthesis of diarylphosphate esters and amides. Using Zn(acac)2 as the catalyst, the reaction of diarylphosphoryl azides with aliphatic alcohols and phenols through an unusual P?N bond cleavage provided a number of diarylphosphate esters in good yields (22 examples, up to 94%). Additionally, various diarylphosphate amides were obtained from the corresponding amines in excellent yields as well (8 examples, up to 96%).

O -Phthalaldehyde catalyzed hydrolysis of organophosphinic amides and other P(O)-NH containing compounds

Li, Bin-Jie,Simard, Ryan D.,Beauchemin, André M.

supporting information, p. 8667 - 8670 (2017/08/10)

Over 50 years ago, Jencks and Gilchrist showed that formaldehyde catalyses the hydrolysis of phosphoramidate through electrophilic activation, induced by covalent attachment to its nitrogen atom. Given our interest in the use of aldehydes as catalysts, this work was revisited to identify a superior catalyst, o-phthalaldehyde, which facilitates hydrolyses of various organophosphorus compounds bearing P(O)-NH subunits under mild conditions. Interestingly, chemoselective hydrolysis of the P(O)-N bonds could be accomplished in the presence of P(O)-OR bonds.

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