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207732-29-4

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207732-29-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207732-29-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,7,3 and 2 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 207732-29:
(8*2)+(7*0)+(6*7)+(5*7)+(4*3)+(3*2)+(2*2)+(1*9)=124
124 % 10 = 4
So 207732-29-4 is a valid CAS Registry Number.

207732-29-4Downstream Products

207732-29-4Relevant articles and documents

Sequential Synthesis of Organosilicon-Linked 2-Methoxypyridines by Non-Cryogenic ortho-Metallation Using the nBu2TMPMg·Li Reagent and Hydrosilylation

Struk, ?ukasz,Sos?nicki, Jacek G.,Idzik, Tomasz J.,Maciejewska, Gabriela

, p. 1292 - 1304 (2016/03/19)

The non-cryogenic synthesis of 5/6- and/or 3-silyl-functionalised 2-methoxypyridines by a 5-Br/Mg exchange process using nBu2iPrMg Li and LiCl and involving C-3 metallation using a novel nBu2TMPMg Li reagent is described. Furthermore, the usefulness of nBu2TMPMg Li in the functionalisation of 2-methoxypyridine at the 3-position with a wide range of electrophiles was successfully tested. The above achievements have allowed the construction of organosilicon-linked 2-methoxypyridines composed of two, three and four rings by the hydrosilylation of 5- and/or 3-SiH(or alkenyl) derivatives using the hitherto rarely applied [Pt(cod)Me2] catalyst. Additionally, the synthesis of a one-chain oligomer consisting of eight 2-methoxypyridines obtained by the hydrosilylation/polymerisation approach, followed by protodesilylation of the SiHMe2 group was also achieved by manipulating the amount of catalyst in the reactions.

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