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158583-30-3

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158583-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158583-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,8 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 158583-30:
(8*1)+(7*5)+(6*8)+(5*5)+(4*8)+(3*3)+(2*3)+(1*0)=163
163 % 10 = 3
So 158583-30-3 is a valid CAS Registry Number.

158583-30-3Relevant articles and documents

Ester-imine condensation mediated by potassium tert-butoxide: Synthesis of β-lactams and 3,4-dihydropyridin-2-ones

Cainelli,Panunzio,Giacomini,Di Simone,Camerini

, p. 805 - 808 (1994)

The utility of the weak base potassium tert-butoxide has been successfully demonstrated in the synthesis of β-lactams and 3,4-dihydropyridin-2-ones starting from esters and imines.

N-Phosphorylated lactams 2. Reversible phosphorylation of silyllactams

Ouryupin, A. B.,Rakhov, L. A.,Kolesova, V. A.,Petrovskii, P. V.,Mastryukova, T. A.,Kabachnik, M. L.

, p. 2157 - 2162 (2007/10/03)

The phosphorylation of N-trimethylsilyllactams by phosphorus(III) acid chlorides results in corresponding N-phosphinolactams in high yields. The derivatives thus obtained have been used in the synthesis of N-phosphoryl- and N-thiophosphoryllactams. The reversibility of the reaction of phosphinolactams has been established. - Keywords: N-trimethylsilyllactams; reversible phosphorylation; N-phosphoryllactams, synthesis.

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