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433732-83-3

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433732-83-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 433732-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,3,7,3 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 433732-83:
(8*4)+(7*3)+(6*3)+(5*7)+(4*3)+(3*2)+(2*8)+(1*3)=143
143 % 10 = 3
So 433732-83-3 is a valid CAS Registry Number.

433732-83-3Relevant articles and documents

Zirconium-Mediated Intramolecular Ester Transfer Reaction: Synthesis of α-Substituted γ-Aminobutyric Acid (GABA) Derivatives

Ito, Hisanaka,Omodera, Katsunori,Takigawa, Yasushi,Taguchi, Takeo

, p. 1499 - 1501 (2002)

(matrix presented) The zirconium-mediated intramolecular ester transfer reaction of N-alkenyl carbamate derivatives proceeded to give α-substituted γ-aminobutyric acid (GABA) derivatives in good to excellent yields. Quenching experiments of the reaction mixture with iodine or O2 indicated the presence of a cyclopropane intermediate. The resulting iodide was converted to 2-substituted pyrrolidine-3-carboxylate and/or α-alkylidene-γ-aminobutyric acid derivatives in a stereospecific manner.

Synthesis of cyclic dienamide using ruthenium-catalyzed ring-closing metathesis of ene-ynamide

Mori, Miwako,Wakamatsu, Hideaki,Saito, Nozomi,Sato, Yukako,Narita, Rie,Sato, Yoshihiro,Fujita, Reiko

, p. 3872 - 3881 (2007/10/03)

Ring-closing metathesis of ene-ynamide, which has alkene and ynamide moieties in a molecule, using a second-generation ruthenium carbene complex produced nitrogen-containing heterocycles, which have a dienamide moiety, in high yields. Diels-Alder reaction

A new, highly stereoselective approach to pyrrolidines via overall 5-endo-trig cyclisations of homoallylic tosylamides

Jones, Andrew D.,Knight, David W.

, p. 915 - 916 (2007/10/03)

Iodocyclisations of E-homoallylic tosylamides 7 lead to excellent yields of either 2,5-trans- or 2,5-cis-3-iodopyrrolidines (10 or 11), depending upon the reaction conditions.

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