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275816-76-7

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275816-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 275816-76-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,5,8,1 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 275816-76:
(8*2)+(7*7)+(6*5)+(5*8)+(4*1)+(3*6)+(2*7)+(1*6)=177
177 % 10 = 7
So 275816-76-7 is a valid CAS Registry Number.

275816-76-7Relevant articles and documents

Enantioselective organocatalytic amine conjugate addition

Chen, Young K.,Yoshida, Masanori,MacMillan, David W. C.

, p. 9328 - 9329 (2007/10/03)

The first enantioselective organocatalytic amine conjugate addition has been successfully developed. The application of LUMO-lowering iminium catalysis has enabled the highly chemo- and enantioselective 1,4-addition of a rationally designed N-silyloxycarb

Homologation of α-amino acids to β-amino acids: 9-Fluorenylmethyl chloroformate as a carboxyl group activating agent for the synthesis of Nα-protected aminoacyldiazomethanes

Kantharaju,Suresh Babu, Vommina V.

, p. 2152 - 2158 (2007/10/03)

An efficient and stereospecific homologation of urethane-protected α-amino acids to β-amino acids by Arndt-Eistert approach using an equimolar mixture of Fmoc-/Boc-/Z-α-amino acid and 9-fluorenylmethyl chloroformate for the acylation of diazomethane synth

Convenient in situ synthesis of nonracemic N-protected β-amino aldehydes from β-amino acids. Applications in Wittig reactions and heterocycle synthesis

Davies, Simon B.,McKervey, M. Anthony

, p. 1229 - 1232 (2007/10/03)

N-Z-γ-amino alcohols derived from nonracemic β-amino acids are smoothly oxidised by manganese dioxide in acetonitrile to afford aldehydes which can be trapped in situ in Wittig reactions with carbonyl-substituted phosphoranes. The application of this methodology to the synthesis of the alkaloids (S)-(+)-N-BOC-coniine, (S)-(-)-coniceine and a pipecoline precursor is described.

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