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The Global ETD Search service is a free service for researchers
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Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 21 to 30 of 189 (0.064 seconds)Spelling suggestions: "subject:"alderreaction"" "subject:"underreaction""
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Photo Retro Diels-alder Reaction Of The Adducts Of Tetracyanoethylene And Polyaromatic CompoundsBanerjee, Siddthartha 01 January 2011 (has links)
Thermally induced retro-Diels Alder (rDA) reaction has been extensively used for the preparation of many reactive intermediates in organic synthesis. But the uses of photo-retro Diels-Alder (PrDA) reaction in organic synthesis were sparingly reported in literature. Due to its spatial and temporal control, PrDA can be used in making of photosensitive materials, in drug delivery and also for mechanistic studies. Diels-Alder adducts of tetracyanoethylene (TCNE) and polyaromatic compounds (anthracene, napthacene, pentacene and phencyclone) were synthesized and were subjected to PrDA reaction through 254-nm irradiation. The quantum yield and the consequent photoreactivity of these DA adducts follow the following order. TCNE/naphthacene greater than] TCNE/anthracene greater than or equal to] TCNE/pentacene This trend was explained by a mechanism of charge-separated intermediates. The stability of the charge-separated intermediate is the governing factor of this trend of photoractivity of DA adducts. Based on these results it is possible to design a proper DA adduct and consequently predict the feasibility of the PrDA reaction.
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| 22 |
Studies in benzocyclobutene chemistry : Diels-Alder adducts of benzocyclobutadiene and l-mono- and 1,2-disubstituted benzocyclobutenes /Mitchell, Michael James January 1960 (has links)
No description available.
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Synthetic studies towards the squalestatinsMontagnon, T. January 2000 (has links)
No description available.
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| 24 |
Synthesis of substituted 1,2,3,4-tetrahydroquinolinesMerriman, Glynn David January 1993 (has links)
No description available.
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| 25 |
Stereochemical aspects of the intramolecular Diels-Alder reactionGillis, Herbert Russell January 1982 (has links)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE / Includes bibliographical references. / by Herbert Russell Gillis, Jr. / Ph.D.
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| 26 |
I. Physical organic studies of an interfacial Diels-Alder reaction : II. A chemoselective approach to gold nanoparticles assembly and polymeric multilayer deposition on solid supports /Chan, Eugene Wai Lun. January 2002 (has links)
Thesis (Ph. D.)--University of Chicago, Department of Chemistry, 2002. / Includes bibliographical references. Also available on the Internet.
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[Alpha] [Greek small letter alpha]-nitrosulfones : synthetic and mechanistic studies /Murray, James K. Wade, Peter A. January 2003 (has links)
Thesis (Ph. D.)--Drexel University, 2003. / Includes abstract and vita. Includes bibliographical references.
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A synthetic approach to Yuehchukene analogues覃天佑, Chan, Tin-yau. January 1987 (has links)
published_or_final_version / Chemistry / Master / Master of Philosophy
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| 29 |
Preparation and regioselectivity of simple sulfur and selenium substituted dienes in the Diels-Alder reaction, Part I Synthesis of macrocyclic polydentate ligands by successive michael additions to activated acetylenes, Part IIVerbicky, John Walter 05 1900 (has links)
No description available.
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| 30 |
Applications of trajectory analysis : asymmetric induction in the Diels-Alder reaction using Chiral E and Z acrylates ; Synthesis and chemistry of 1, 3 selenonium ylides ; Synthesis and attempted reactions of an [eta][superscript]2-disulfido molybdenum (VI) compoundEarnhart, Laurence Lee 05 1900 (has links)
No description available.
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