Enantioselektivní syntéza homoallylových alkoholů katalyzovaná chirálními N-oxidy

In order to extend the earlier work in the group,1 we endeavored to explore the ability of the terpene-derived pyridine N-oxide organocatalyst (+)-METHOX to catalyze allylations of non-aromatic, α,β-conjugated aldehydes with allyltrichlorosilane in CH3CN. This thesis describes the synthesis of 5 nov...

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Bibliographic Details
Main Author: Mikušek, Jiří
Other Authors: Pour, Milan
Format: Dissertation
Language:English
Published: 2011
Online Access:http://www.nusl.cz/ntk/nusl-297617
Description
Summary:In order to extend the earlier work in the group,1 we endeavored to explore the ability of the terpene-derived pyridine N-oxide organocatalyst (+)-METHOX to catalyze allylations of non-aromatic, α,β-conjugated aldehydes with allyltrichlorosilane in CH3CN. This thesis describes the synthesis of 5 novel homoallylic alcohols of high enantioselectivities (≤ 96% ee). O HR + SiCl3 METHOX 10 mol% CH3CN -30 řC R OH * (S)  96% ee N+ O- OMe OMe OMe (+)-METHOX 1 Malkov, A. V.; Bell, M.; Castelluzzo, F.; Kočovský, P. Org. Lett. 2005, 7, 3219