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1623-22-9

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1623-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1623-22-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,2 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1623-22:
(6*1)+(5*6)+(4*2)+(3*3)+(2*2)+(1*2)=59
59 % 10 = 9
So 1623-22-9 is a valid CAS Registry Number.

1623-22-9Relevant articles and documents

Mild and Chemoselective Phosphorylation of Alcohols Using a Ψ-Reagent

Ociepa, Micha?,Knouse, Kyle W.,He, David,Vantourout, Julien C.,Flood, Dillon T.,Padial, Natalia M.,Chen, Jason S.,Sanchez, Brittany B.,Sturgell, Emily J.,Zheng, Bin,Qiu, Shenjie,Schmidt, Michael A.,Eastgate, Martin D.,Baran, Phil S.

supporting information, p. 9337 - 9342 (2021/10/01)

An operationally simple, scalable, and chemoselective method for the direct phosphorylation of alcohols using a P(V)-approach based on the Ψ-reagent platform is disclosed. The method features a broad substrate scope of utility in both simple and complex settings and provides access to valuable phosphorylated alcohols that would be otherwise difficult to obtain.

Regioselective phosphorylation of carbohydrates and various alcohols by bacterial acid phosphatases; probing the substrate specificity of the enzyme from Shigella flexneri

Van Herk, Teunie,Hartog, Aloysius F.,Van Der Burg, Alida M.,Wever, Ron

, p. 1155 - 1162 (2007/10/03)

Bacterial non-specific acid phosphatases normally catalyze the dephosphorylation of a variety of substrates. As shown previously the enzymes from Shigella flexneri and Salmonella enterica are also able to catalyze the phosphorylation of inosine to inosine monophosphate and D-glucose to D-glucose 6-phosphate (D-G6P) using cheap pyrophosphate as the phosphate donor. After optimization high yields (95%) are achieved in the latter reaction and we show here that it is possible to use these enzymes in a preparative manner. This prompted us to investigate by using 31P NMR and HPLC also the phosphorylation of a broad range of carbohydrates and alcohols. Many cyclic carbohydrates are phosphorylated in a regioselective manner. Non-cyclic carbohydrates are phosphorylated as well. Phosphorylation of linear alcohols, cyclic and aromatic alcohols is also possible. In all cases the acid phosphatase from Shigella prefers a primary alcohol function above a secondary one. We conclude that these enzymes are an attractive alternative to existing chemical and enzymatic methods in the phosphorylation of a broad range of compounds.

Preparation of phosphate and pyrophosphate esters by the metal catalyzed reaction of 8 quinolyl phosphates

Nagasawa,Yoshidome

, p. 2438 - 2443 (2007/10/05)

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