The present work entails the synthesis of different cross-conjugated (CC) heterodiene systems, and their transformations in various heterocyclic compounds using the hetero Diels-Alder (HDA) methodology. One of the main highlights of present work includes the development of simple and convenient procedure for the synthesis of stable CC azatrienes, and their tandem [2+2] cycloadditions and highly facile [3,3] sigmatropic Cope rearrangements with conjugated ketenes, leading to facile synthesis of various functionalized azocinone derivatives. A generalized and relevant study regarding the reactivity of thiazolic diazadienes with different ketenes was also conducted, and a remarkable increase in reactivity was observed with the introduction of electron donating group across the carbonyl group. Considering the biological and medicinal importance of C-5 or C-6 substituted pyrimidinones, the dienyl moiety of thiazolopyrimidinones was utilized further in Diels-Alder cycloadditions with both symmetrical and unsymmetrical dienophiles. Additionally, the synthesis of various pyrans, thiopyrans, thiophenes, thiazoles, 1,3-thiazines etc. is also described.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
Dr Parvesh Singh is currently a Research Scientist in the Department of Chemistry at Durban University of Technology (DUT), South Africa. His research area includes both the synthetic and computational studies of organic molecules. Dr Singh has published 20 papers in International Journals including 2 Book Chapters in the international books.
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present work entails the synthesis of different cross-conjugated (CC) heterodiene systems, and their transformations in various heterocyclic compounds using the hetero Diels-Alder (HDA) methodology. One of the main highlights of present work includes the development of simple and convenient procedure for the synthesis of stable CC azatrienes, and their tandem [2+2] cycloadditions and highly facile [3,3] sigmatropic Cope rearrangements with conjugated ketenes, leading to facile synthesis of various functionalized azocinone derivatives. A generalized and relevant study regarding the reactivity of thiazolic diazadienes with different ketenes was also conducted, and a remarkable increase in reactivity was observed with the introduction of electron donating group across the carbonyl group. Considering the biological and medicinal importance of C-5 or C-6 substituted pyrimidinones, the dienyl moiety of thiazolopyrimidinones was utilized further in Diels-Alder cycloadditions with both symmetrical and unsymmetrical dienophiles. Additionally, the synthesis of various pyrans, thiopyrans, thiophenes, thiazoles, 1,3-thiazines etc. is also described. 160 pp. Englisch. N° de réf. du vendeur 9783846592922
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Etat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Singh ParveshDr Parvesh Singh is currently a Research Scientist in the Department of Chemistry at Durban University of Technology (DUT), South Africa. His research area includes both the synthetic and computational studies of organic. N° de réf. du vendeur 5501875
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Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The present work entails the synthesis of different cross-conjugated (CC) heterodiene systems, and their transformations in various heterocyclic compounds using the hetero Diels-Alder (HDA) methodology. One of the main highlights of present work includes the development of simple and convenient procedure for the synthesis of stable CC azatrienes, and their tandem [2+2] cycloadditions and highly facile [3,3] sigmatropic Cope rearrangements with conjugated ketenes, leading to facile synthesis of various functionalized azocinone derivatives. A generalized and relevant study regarding the reactivity of thiazolic diazadienes with different ketenes was also conducted, and a remarkable increase in reactivity was observed with the introduction of electron donating group across the carbonyl group. Considering the biological and medicinal importance of C-5 or C-6 substituted pyrimidinones, the dienyl moiety of thiazolopyrimidinones was utilized further in Diels-Alder cycloadditions with both symmetrical and unsymmetrical dienophiles. Additionally, the synthesis of various pyrans, thiopyrans, thiophenes, thiazoles, 1,3-thiazines etc. is also described. N° de réf. du vendeur 9783846592922
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Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware -The present work entails the synthesis of different cross-conjugated (CC) heterodiene systems, and their transformations in various heterocyclic compounds using the hetero Diels-Alder (HDA) methodology. One of the main highlights of present work includes the development of simple and convenient procedure for the synthesis of stable CC azatrienes, and their tandem [2+2] cycloadditions and highly facile [3,3] sigmatropic Cope rearrangements with conjugated ketenes, leading to facile synthesis of various functionalized azocinone derivatives. A generalized and relevant study regarding the reactivity of thiazolic diazadienes with different ketenes was also conducted, and a remarkable increase in reactivity was observed with the introduction of electron donating group across the carbonyl group. Considering the biological and medicinal importance of C-5 or C-6 substituted pyrimidinones, the dienyl moiety of thiazolopyrimidinones was utilized further in Diels-Alder cycloadditions with both symmetrical and unsymmetrical dienophiles. Additionally, the synthesis of various pyrans, thiopyrans, thiophenes, thiazoles, 1,3-thiazines etc. is also described.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 160 pp. Englisch. N° de réf. du vendeur 9783846592922
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Taschenbuch. Etat : Neu. Synthetic Transformations of Conjugated Heterodienes | Heterodiene cycloadditions | Parvesh Singh | Taschenbuch | 160 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783846592922 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu. N° de réf. du vendeur 106713794
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Paperback. Etat : Brand New. 160 pages. 8.66x5.91x0.37 inches. In Stock. N° de réf. du vendeur 3846592927
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