Cas 188659-63-4,5(S)-tert-butyloxycarbonylamino-4(R)-(1'(R/S)-cyclohex-2'-enyl)-2,2-dimethyl-1,3-dioxan

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Check Digit Verification of cas no

The CAS Registry Mumber 188659-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,5 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 188659-63:
(8*1)+(7*8)+(6*8)+(5*6)+(4*5)+(3*9)+(2*6)+(1*3)=204
204 % 10 = 4
So 188659-63-4 is a valid CAS Registry Number.

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188659-63-4Relevant academic research and scientific papers

Barbier-type allylation of chiral α-Aminoaldehydes: Dependence of the stereochemical outcome on metal and allylic halide

Ruebsam, Frank,Seck, Stephan,Giannis, Athanassios

, p. 2823 - 2834 (2007/10/03)

The chiral β-hydroxy-α-aminoaldehydes of type 1 react smoothly with allyl-, 3,3-dimethylallyl bromide and 2-bromo-cyclohexene in the presence of tin or zinc dust to give the homoallylic alcohols of type 3. For the first time it is shown that the diastereoselectivity in the Barbier reaction can be influenced by the choice of metal and 1 or allylic halide.

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