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Titlebook: Selectivities in Lewis Acid Promoted Reactions; Dieter Schinzer Book 1989 Kluwer Academic Publishers 1989 Ene reaction.Rearrangement.natur

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书目名称Selectivities in Lewis Acid Promoted Reactions
编辑Dieter Schinzer
视频video
丛书名称Nato Science Series C:
图书封面Titlebook: Selectivities in Lewis Acid Promoted Reactions;  Dieter Schinzer Book 1989 Kluwer Academic Publishers 1989 Ene reaction.Rearrangement.natur
描述The ASI workshop on "Selectivities in Lewis Acid Promoted Reactions" held in the Emmantina-Hotel in Athens-Glyfada, Greece, October 2-7, 1988 was held to bring some light into the darkness of Lewis acid induced processes. As such the workshop reflects some current trends in organic synthesis, where Lewis acids are becoming a powerful tool in many different modern reactions, e.g. Diels-Alder reactions, Ene reactions, Sakurai reactions, and in general silicon and tin chemistry. The objective of this meeting was to bring together most of the world experts in the field to discuss the major reactions promoted by Lewis acids. Organic synthesis will play a major role in this book connected with some fundamental mechanistic work on allylsilane and -tin chemistry. Both natural product synthesis and unnatural molecules are presented in the chapters. The book presents all the 15 invited lectures and the contributions of 15 posters. I am confident that the material presented in this book will stimulate the chemistry, which has been discussed on our meeting, around the world. The meeting and the book were only possible through a grant of the NATO Scientific Affairs Devision and financial suppor
出版日期Book 1989
关键词Ene reaction; Rearrangement; natural product; organic synthesis; synthesis
版次1
doihttps://doi.org/10.1007/978-94-009-2464-2
isbn_softcover978-94-010-7611-1
isbn_ebook978-94-009-2464-2Series ISSN 1389-2185
issn_series 1389-2185
copyrightKluwer Academic Publishers 1989
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Cationic Cyclization Reactions Terminated by Pinacol Rearrangements,tegy in organic synthesis. [1] Much of the recent progress in this area stems from the development of selective electrophilic functionality for . the cyclization and complimentary nucleophilic functionality for cyclization .. Illustrative examples would be the widely employed acetal cyclization init
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Mechanistic Variability in the Lewis Acid-Promoted Reactions of Aldehydes with Organostannanes,py. Using this technique, all processes involved in a rather complex manifold of reactions can be observed at low temperature. These three substrates span the range of possible behavior upon complexation with SnCl. at 1:1 stoichiometry: 2-methyl-3-benzyloxypropanal is a “strong chelator”, 3-benzylox
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Synthetic and Mechanistic Studies of Lewis Acid Mediated C-C-Bond Formation,e LUMO of the carbonyl function, activating the molecule toward nucleophilic additions of enolsilanes, allylsilanes, R.Zn and Me.SiCN. The latter additions occur stereoselectively with chelation control. The sense of diastereoselectivity can be reversed using metal and protective group tuning. Group
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Acylation of Alkenes and Allylsilanes,chlorides giving divinylketones which undergo the Nazarov cyclization to afford pentalenones or cyclopentenones. The acylation of alkenes by ., γ-ethylenic acyl chlorides gives cyclohexenone moieties. Applications afford a synthetic route to tricyclic carbon compounds (des-A-11-oxo or des-D-7-oxo st
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Lewis Acid-Catalyzed Stereoselection on Carbohydrate Templates,hydrates are investigated as the chiral auxiliaries in alkylation reactions and in Michael additions of ester enolates. Furthermore, carbohydrates are demonstrated to be efficient chiral matrices in Lewis acid-catalyzed Diels-Alder reactions. They also effect stereoselection in a new synthesis of β-
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