Enantioselective [4 + 2] Cycloadditions of Iminoacetonitriles PDF Download
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Author: Shaun David Fontaine
Publisher:
ISBN:
Category :
Languages : en
Pages : 331
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Book Description
Iminoacetonitriles participate as reactive dienophiles in intramolecular Diels-Alder cycloadditions affording quinolizidines and indolizidines. The resulting a-amino nitrile cycloadducts are versatile intermediates that can be further elaborated in a stereoselective manner. This thesis describes the development of intramolecular, enantioselective aza Diels- Alder cycloadditions promoted by chiral Brønsted acids as well as the discovery that iminoacetonitriles can also participate in acid catalyzed cycloadditions. The second part of this thesis reports the total synthesis of (-)-quinolizidine 2071 using an intramolecular, enantioselective cycloaddition of an iminoacetonitrile as the key step.
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Author: Shaun David Fontaine
Publisher:
ISBN:
Category :
Languages : en
Pages : 331
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Book Description
Iminoacetonitriles participate as reactive dienophiles in intramolecular Diels-Alder cycloadditions affording quinolizidines and indolizidines. The resulting a-amino nitrile cycloadducts are versatile intermediates that can be further elaborated in a stereoselective manner. This thesis describes the development of intramolecular, enantioselective aza Diels- Alder cycloadditions promoted by chiral Brønsted acids as well as the discovery that iminoacetonitriles can also participate in acid catalyzed cycloadditions. The second part of this thesis reports the total synthesis of (-)-quinolizidine 2071 using an intramolecular, enantioselective cycloaddition of an iminoacetonitrile as the key step.
Author: Stephanie Tumidajski
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Book Description
Iminoacetonitriles participate as activated imino dienophiles in intermolecular and intramolecular aza Diels-Alder reactions affording tetrahydropyridines and indolizidines. The [alpha]-amino nitrile cycloadducts are versatile synthetic intermediates that participate in a variety of stereoselective transformations to further elaborate the six-membered ring. This thesis describes the scope of the intermolecular [4 + 2] cycloaddition of N-benzyliminoacetonitrile with unactivated and activated dienes, as well as, the synthetic elaboration of the cycloadducts. This thesis also describes the worked performed to complete the total syntheses of indolizidines (-)- 235B', (-)-235B", and (+)-235B" using the aza Diels-Alder reaction of an iminoacetonitrile as the key step.
Author: Chao-Jun Li
Publisher: John Wiley & Sons
ISBN: 3527342818
Category : Science
Languages : en
Pages : 848
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Book Description
Dieses Fachbuch untersucht systematisch die Leistungsfähigkeit der Silberkatalyse, behandelt neu entwickelte organische Reaktionen und den Reaktionsmechanismus. Der Schwerpunkt liegt auf den Eigenschaften und dem Vergleich der Vorteile diese Katalyse in der organischen Synthese.
Author: A. C. Knipe
Publisher: John Wiley & Sons
ISBN: 0470061235
Category : Science
Languages : en
Pages : 644
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Book Description
The only book series to summarize the latest progress on organic reaction mechanisms, Organic Reaction Mechanisms, 2003 surveys the development in understanding of the main classes of organic reaction mechanisms reported in the primary scientific literature in 2003. The 39th annual volume in this highly successful series highlights mechanisms of stereo-specific reactions. Reviews are compiled by a team of experienced editors and authors, allowing advanced undergraduates, graduate students, postdocs, and chemists to rely on the volume's continuing quality of selection and presentation.
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1902
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Book Description
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 980
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Book Description
Author: American Chemical Society. Committee on Professional Training
Publisher:
ISBN:
Category : Biochemistry
Languages : en
Pages : 1932
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Book Description
Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada.
Author: A. C. Knipe
Publisher: Wiley
ISBN: 9780470018477
Category : Science
Languages : en
Pages : 720
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Book Description
The 40th annual volume in this highly successful and unique series surveying the advances in the understanding of organic reaction mechanisms. In every volume the content is divided in the different classes of organic reaction mechanisms, including: Reaction of Aldehydes and Ketones and their Derivatives Reactions of Carboxylic, Phosphoric, and Sulfonic Acids and their Derivatives Oxidation and Reduction Carbenes and Nitrenes Elimination Reactions Radical Reactions Molecular Rearrangements An experienced team of authors compile these reviews every year, so that the reader can rely on a continuing quality of selection and presentation. As a new service to the reader all reaction mechanisms leading to stereospecific products are highlighted. This reflects the needs of the organic synthetic community with leads to chiral reactions.
Author: Guangbin Dong
Publisher: Springer
ISBN: 364255055X
Category : Science
Languages : en
Pages : 265
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Book Description
The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. Review articles for the individual volumes are invited by the volume editors. Readership: research chemists at universities or in industry, graduate students
Author: Michael Harmata
Publisher: John Wiley & Sons
ISBN: 1118057864
Category : Science
Languages : en
Pages : 395
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Book Description
The first authoritative book on using silver cations in organic chemistry—for catalysis and more! With more sophisticated catalytic methodologies fueling a resurgence in the study of cation-based chemistry, gold and platinum have stepped to the fore as the unique agents used to create new chemical reactions. Although these metals have become a primary focus of researchers in the field, another coinage metal that is often overlooked—but is as powerful as the others—is silver, a far less costly alternative to gold and platinum in aiding the development of new reactions. Making a strong case for the use of silver as a catalyst and structural element in organometal constructs, this authoritative book is the first to explore the benefits of using silver in organic chemistry by taking a close look at silver’s unique reactivity and structural characteristics for the development of new methods and materials. Silver in Organic Chemistry is: The first book to address catalysis using silver, whose use in organic chemistry is on the verge of exploding A resource for researchers wishing to do chemistry with silver cations, an area that stands in the shadow of gold chemistry, but still glistens, demonstrating that all that glitters is not gold—sometimes it’s silver! A guide for “first attempts” in working with silver cations Edited by a very well-respected, highly visible authority in this field Silver in Organic Chemistry promotes further scientific discussion by offering important new ways to examine the future possibilities of an emerging field. By elevating the importance of silver chemistry, this thought-provoking guide illustrates how this versatile metal can become an increasingly significant player in opening the door to new catalytic organic reactions and new organometal materials.
