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131613-92-8

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131613-92-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131613-92-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,1 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131613-92:
(8*1)+(7*3)+(6*1)+(5*6)+(4*1)+(3*3)+(2*9)+(1*2)=98
98 % 10 = 8
So 131613-92-8 is a valid CAS Registry Number.

131613-92-8Relevant articles and documents

An intramolecular oxa-Michael addition on prebuilt β-lactam tethered α, β-unsaturated ester: A remarkable synthesis of a unique scaffold of 2,3-fused β-lactam-1,4-dioxepane

Yadav, Ram N.,Paniagua, Armando,Banik, Bimal K.

, (2021)

An expeditious base assisted highly diastereoselective intramolecular oxy-Michael addition reaction in the synthesis of enantiomerically pure 1,4-dioxepane fused β-lactam has been described. This present study has been portrayed a rapid intramolecular 7-e

4-Formylazetidin-2-ones, synthon for the synthesis of (2R,3S) and (2S,3R)-3-amino-2-hydroxydecanoic acid (AHDA)

Shirode, Nilesh M.,Deshmukh, Abdul Rakeeb A.S.

, p. 4615 - 4621 (2007/10/03)

An efficient synthesis of 3-amino-2-hydroxydecanoic acid (AHDA), a nonproteinogenic amino acid, using enantiopure 3-benzyloxy-4-formylazetidin-2-one as a building block is described. Both the enantiomers of AHDA have been synthesized from the corresponding enantiomer of 3-benzyloxy-4-formylazetidin-2-one in good yield and optical purity.

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