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280559-83-3

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280559-83-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 280559-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,0,5,5 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 280559-83:
(8*2)+(7*8)+(6*0)+(5*5)+(4*5)+(3*9)+(2*8)+(1*3)=163
163 % 10 = 3
So 280559-83-3 is a valid CAS Registry Number.

280559-83-3Relevant academic research and scientific papers

The phosphorus-mediated oligomerization of glycinesters

Alibert-Fouet,Mulliez, Michel

, p. 2555 - 2563 (2006)

The catalytic polymerization of α-aminoacids or stable α-aminoesters in the presence of a phosphorus template is proposed as an alternative to that of sensitive N-carboxyanhydrides for the synthesis of polyaminoacids. The synthesis of methane thiophosphon

Catalyse intramoleculaire de l'aminolyse d'heterocycles phosphores derives des α aminoamides. I: Synthese de (thio) phosphor(N)diamides incorporant un residu de ss aminoacide

Dujols, Frederic,Jollet, Philippe,Mulliez, Michel

, p. 231 - 254 (2007/10/03)

A general scheme of intramolecular nucleophilic catalysis of aminolysis of the heterocycles B is proposed (Figure 2). The requisite heterocycle D, when built with a β aminoamide residue, allows also a repetitive β peptide synthesis, as with α aminoacids (Figure 1). In order to evaluate the feasibility of both schemes, fifteen phosphor(n)diamides (table III) incorporating one residue of β aminoacid, in form of esters 3, acids 5 (models of E, Figure 2), nitrile 11, or hydrazides 12 have been synthesized starting from P(IV) dichlorides 1 (Figure 3). Unexpectedly hydrolysis of nitriles 6 b c leads to β diacids 9 b c with the regular acids 8 b c.

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