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Studies Directed Toward The Total Synthesis Of Salvilenone
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Book Synopsis Studies Directed Toward the Total Synthesis of Salvilenone by : HuiWon Choi
Download or read book Studies Directed Toward the Total Synthesis of Salvilenone written by HuiWon Choi and published by . This book was released on 2005 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model studies on the total synthesis of salvilenone, a phenalenone diterpene found in the roots of Salvia miltiorrhiza Bunge, are reported via a double annulation strategy. The key steps in the proposed synthesis involve a regiocontrolled benzannulation involving the photochemical Wolff rearrangement of an a-diazo ketone and an alkoxy acetylene moiety which assembles an aromatic ring in one step from acyclic precursors followed by an intramolecular [4 + 2] cycloaddition of a conjugated enyne and benzyne intermediate.
Book Synopsis Studies Directed Toward the Total Synthesis of Pseudolarolide E by : Matthieu Barragué
Download or read book Studies Directed Toward the Total Synthesis of Pseudolarolide E written by Matthieu Barragué and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Toward the Total Synthesis of Natural Products and Their Analogs by : Dennis Joseph Golob
Download or read book Studies Directed Toward the Total Synthesis of Natural Products and Their Analogs written by Dennis Joseph Golob and published by . This book was released on 1979 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Toward the Total Synthesis of Brevetoxin A by : Pamela Cleary
Download or read book Studies Directed Toward the Total Synthesis of Brevetoxin A written by Pamela Cleary and published by . This book was released on 2003 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Total Synthesis of Leucascandrolide A ; Studies Directed Toward the Total Synthesis of Ingenol by : Keith Hornberger
Download or read book The Total Synthesis of Leucascandrolide A ; Studies Directed Toward the Total Synthesis of Ingenol written by Keith Hornberger and published by . This book was released on 2002 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Toward the Total Synthesis of Calyculin A. by : James William Malecha
Download or read book Studies Directed Toward the Total Synthesis of Calyculin A. written by James William Malecha and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards the Total Synthesis of the Natural Products Avarol and Capentin by : Thomas Elliott Jacks
Download or read book Studies Directed Towards the Total Synthesis of the Natural Products Avarol and Capentin written by Thomas Elliott Jacks and published by . This book was released on 1993 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Part One. Studies Directed Toward a Total Synthesis of (±)-dendrobine by : David N. Ridge
Download or read book Part One. Studies Directed Toward a Total Synthesis of (±)-dendrobine written by David N. Ridge and published by . This book was released on 1976 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards the Total Synthesis of Altohyrtin A. by : Pierre D. Kary
Download or read book Studies Directed Towards the Total Synthesis of Altohyrtin A. written by Pierre D. Kary and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Toward the Total Synthesis of Dragmacidin E by : Paiboon Ngernmeesri
Download or read book Studies Directed Toward the Total Synthesis of Dragmacidin E written by Paiboon Ngernmeesri and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Allylsilane Initiated Carbocyclizations by : Clay Edwin Ringold
Download or read book Allylsilane Initiated Carbocyclizations written by Clay Edwin Ringold and published by . This book was released on 1989 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards the Total Synthesis of Rhizoxin by : Benjamin Eric Blass
Download or read book Studies Directed Towards the Total Synthesis of Rhizoxin written by Benjamin Eric Blass and published by . This book was released on 1994 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed to the Total Synthesis of Biologically Active Natural Products by : Spiros I. Liras
Download or read book Studies Directed to the Total Synthesis of Biologically Active Natural Products written by Spiros I. Liras and published by . This book was released on 1990 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards the Total Synthesis of Pentacyclic Triterpenes by : John Sheldon Dutcher
Download or read book Studies Directed Towards the Total Synthesis of Pentacyclic Triterpenes written by John Sheldon Dutcher and published by . This book was released on 1975 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthetic Studies Toward the Total Synthesis of Sirodesmin A by : Daniel James Conatser
Download or read book Synthetic Studies Toward the Total Synthesis of Sirodesmin A written by Daniel James Conatser and published by . This book was released on 1982 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies Directed Towards the Synthesis of ( - )-Ebelactone-A. by : Colin Frederick Foster
Download or read book Studies Directed Towards the Synthesis of ( - )-Ebelactone-A. written by Colin Frederick Foster and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes work concerning the total synthesis of ebelactone-a 16, and in particular the synthesis of one of the retrosynthetic fragments (fragment A 20) and its coupling to the combined fragment BC 115 formed from the other two. We repeated the synthesis of enantiomerically enriched 20 devised by Williams, employing a Mukaiyama aldol reaction directed by Oppolzer's sultam to establish the anti-anti stereotriad of the fragment. We modelled the coupling of this to 115 using isobutyraldehyde in place of 20 and vinyl iodide 133 in place of 115, and verified that the Nozaki-Kishi method using chromium(II) chloride and catalytic nickel(II) chloride was effective. By this method, we successfully coupled 133 to 20. Model work was unsuccessful in establishing a methodology for removing the hydroxy group from alcohols 188/189 without disrupting either the position or geometry of the adjacent C=C bond. We also established a completely new route to fragment A, utilising the features of organosilicon chemistry to control the stereochemistry. An intermediate 213 containing two different silyl groups, in which we hoped to transform one selectively into a hydroxy group with retention of configuration by Fleming's method, proved too unstable for synthesis, but we were able to modify the route and produce alcohol 254 in enantiomerically pure form (Oppolzer's sultam was once again used as the chiral auxiliary), and we expect future workers to be able to take this through to fragment A.
