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493009-86-2

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493009-86-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 493009-86-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,3,0,0 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 493009-86:
(8*4)+(7*9)+(6*3)+(5*0)+(4*0)+(3*9)+(2*8)+(1*6)=162
162 % 10 = 2
So 493009-86-2 is a valid CAS Registry Number.

493009-86-2Downstream Products

493009-86-2Relevant articles and documents

Solid-phase synthesis of piperidines by N-acyliminium ion chemistry

Veerman, Johan J. N.,Klein, Jasper,Aben, Rene W. M.,Scheeren, Hans W.,Kruse, Chris G.,Van Maarseveen, Jan H.,Rutjes, Floris P. J. T.,Hiemstra, Henk

, p. 3133 - 3139 (2007/10/03)

An efficient solid-phase procedure for the synthesis of a number of 2-substituted piperidines is reported. Starting from solid-supported carbamate -tethered δ-amino acetals, 2- benzotriazolyl- substituted (Bt-substituted) piperidines were obtained by acid-induced ring-closure followed by trapping of the transient N-acyliminium ions with benzotriazole. These 2-Bt-substituted piperidines were then used as precursors for the successful introduction of several C-nucleophiles by N-acyliminium ion chemistry. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.

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