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Studies Toward The Enantioselective Total Synthesis Of The Martinella Alkaloids
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Book Synopsis Studies Toward the Enantioselective Total Synthesis of the Martinella Alkaloids by : Vivek Badarinarayana
Download or read book Studies Toward the Enantioselective Total Synthesis of the Martinella Alkaloids written by Vivek Badarinarayana and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation consists of two parts. The first part describes the enantioselective total synthesis of martinellic acid. The Martinella alkaloids have attracted considerable attention in the synthetic community over the past few years. This interest is due in large part to their unique structure and useful biological activity (bradykinin receptor antagonist). In model systems we have successfully used the [3+2] azomethine ylide-alkene cycloaddition to construct the heterocyclic core of these alkaloids. The enantioselective approach described herein also involves the azomethine ylide-alkene cycloaddition as a key step in the total synthesis. The pyrrolo[3,2-c]quinoline core of this alkaloid was constructed in an enantioselective fashion by the elaboration of an N-aryl pyrrolidinone, which was obtained via Pd-catalyzed aryl amination reaction using a non-racemic lactam. Pirkle's chiral solvating agent was successfully used to demonstrate the stereochemical integrity of not only the N-aryl lactam (obtained by Pd-catalyzed cross-coupling) but also the cycloaddition precursor and the cycloaddition product (tetracyclic pyrroloquinoline core). The tetracyclic compound obtained via the azomethine ylide-alkene cycloaddition was elaborated to ( - )-martinellic acid in 11 steps and 6% overall yield. The second part of this dissertation describes application of several novel organometallic complexes for carrying out various organic transformations. A fluorinated tris(pyrazolyl)borato silver(I) complex catalyzes the addition of ethyl diazoacetate to benzene rings, providing norcaradienes, which undergo electrocyclization to provide the corresponding cycloheptatriene (the Bu & huml;chner reaction). These reactions are surprisingly selective for addition to the aromatic moiety rather than C-H insertion. A copper complex containing a fluorinated triazapentadienyl ligand has been used to catalyze some carbene and nitrene addition and insertion chemistry. Nitrene addition occurs rapidly and with both aryl and alkyl substituted olefins providing the corresponding aziridine. The carbene transfer reactions that were attempted include C-H insertion, O-H insertion and N-H insertion, of which the latter two were very efficient.
Book Synopsis Studies Directed Toward the Enantioselective Total Synthesis of Guattegaumerine by : Cheryl Faye Lichti
Download or read book Studies Directed Toward the Enantioselective Total Synthesis of Guattegaumerine written by Cheryl Faye Lichti and published by . This book was released on 1993 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards the Enantioselective Total Synthesis of Trans-Dihydrolycorcidine by : William L. Brown
Download or read book Studies Directed Towards the Enantioselective Total Synthesis of Trans-Dihydrolycorcidine written by William L. Brown and published by . This book was released on 1989 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards an Enantioselective Total Synthesis of the Marine Alkaloid Haouamine A by : Douglas R. Murken
Download or read book Studies Directed Towards an Enantioselective Total Synthesis of the Marine Alkaloid Haouamine A written by Douglas R. Murken and published by . This book was released on 2008 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Toward the Enantioselective Total Synthesis of Quadrigemine H by : Leonard Sung
Download or read book Studies Toward the Enantioselective Total Synthesis of Quadrigemine H written by Leonard Sung and published by . This book was released on 2008 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic efforts toward the [3+1] quadrigemine alkaloids are described in this dissertation. Chapter 1 reviews the quadrigemine alkaloids from a historical perspective and discusses methods for the construction of their highly congested vicinal and diaryl all-carbon quaternary stereocenters. The application of these methods is featured in the presentation of the enantioselective syntheses of hodgkinsine and quadrigemine C.
Book Synopsis Studies Toward the Toward the Total Synthesis of the Alkaloids Gelsedine and Manzamine A by : Scott A. Ballentine
Download or read book Studies Toward the Toward the Total Synthesis of the Alkaloids Gelsedine and Manzamine A written by Scott A. Ballentine and published by . This book was released on 2000 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Toward the Enantioselective Total Synthesis of Manzamine A by : Matthew David Kowalski
Download or read book Studies Toward the Enantioselective Total Synthesis of Manzamine A written by Matthew David Kowalski and published by . This book was released on 2008 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enantioselective Total Syntheses of Teubrevin G and Teubrevin H and Studies Toward the Enantioselective Total Synthesis of Vinigrol by : Ivan V. Efremov
Download or read book Enantioselective Total Syntheses of Teubrevin G and Teubrevin H and Studies Toward the Enantioselective Total Synthesis of Vinigrol written by Ivan V. Efremov and published by . This book was released on 2001 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Towards the Enantioselective Total Synthesis of Manzamine A by : Theodore Mark Kamenecka
Download or read book Studies Towards the Enantioselective Total Synthesis of Manzamine A written by Theodore Mark Kamenecka and published by . This book was released on 1996 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Utility of Imines, Iminium Ions, and Acyliminium Ions in Alkaloid Synthesis by : Robert Mark Burk
Download or read book The Utility of Imines, Iminium Ions, and Acyliminium Ions in Alkaloid Synthesis written by Robert Mark Burk and published by . This book was released on 1986 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Toward the Total Synthesis of Strychnos Alkaloids by : Steven Roger Angle
Download or read book Studies Toward the Total Synthesis of Strychnos Alkaloids written by Steven Roger Angle and published by . This book was released on 1984 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enantiospecific Total Synthesis of (+)-ajmaline and Alkaloid G as Well as Studies Directed Toward the Total Synthesis of 19-hydroxy-Nb-methylraumacline Via the Asymmetric Pictet-Spengler Reaction by : Jin Li
Download or read book Enantiospecific Total Synthesis of (+)-ajmaline and Alkaloid G as Well as Studies Directed Toward the Total Synthesis of 19-hydroxy-Nb-methylraumacline Via the Asymmetric Pictet-Spengler Reaction written by Jin Li and published by . This book was released on 1999 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Further Progress Towards Enantioselective Total Synthesis of the Bisbenzyltetrahydroisoquinoline Alkaloid ( - )-cycleanine by : Ningzhang Zhou
Download or read book Further Progress Towards Enantioselective Total Synthesis of the Bisbenzyltetrahydroisoquinoline Alkaloid ( - )-cycleanine written by Ningzhang Zhou and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Toward the Enantioselective Total Syntheses of Debromoeudistomidin B and Debromoeudistomin L by : Stephanie Jane Bell
Download or read book Studies Toward the Enantioselective Total Syntheses of Debromoeudistomidin B and Debromoeudistomin L written by Stephanie Jane Bell and published by . This book was released on 1994 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Toward the Total Synthesis of the Strychnos Alkaloids by : Robert Wells Marquis
Download or read book Studies Directed Toward the Total Synthesis of the Strychnos Alkaloids written by Robert Wells Marquis and published by . This book was released on 1988 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Progress Towards Enantioselective Total Synthesis of the Bisbenzyltetrahydroisoquinoline Alkaloid ( - )- Cycleanine and a New Approach to the Syntheses of Some Isoquinolones by : Jianwen Cui
Download or read book Progress Towards Enantioselective Total Synthesis of the Bisbenzyltetrahydroisoquinoline Alkaloid ( - )- Cycleanine and a New Approach to the Syntheses of Some Isoquinolones written by Jianwen Cui and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Toward the Total Synthesis of the Diterpene Alkaloids by : Oliver Earl Hutt
Download or read book Studies Directed Toward the Total Synthesis of the Diterpene Alkaloids written by Oliver Earl Hutt and published by . This book was released on 2005 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: