Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 96 for “"Diels-Alder reaction"”.
-
Synthetic studies of the intramolecular Diels-Alder reaction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1991.
-
Stereochemical aspects of the intramolecular Diels-Alder reaction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1982.
-
The Effect of Pressure on a Catalyzed Diels-Alder Reaction
Made available in DSpace on 2014-12-10T21:24:46Z (GMT). No. of bitstreams: 1 7207033.pdf: 2016768 bytes, checksum: 34a308928028f8d6a0e8e8af34d3a903 (MD5) Previous issue date: 1971
-
Microwave-Mediated Hetero Diels-Alder reaction: Synthesis of biologically active compounds
… the synthesis of such compounds is the hetero Diels-Alder reaction (HDA), that involve a [4+2] cycloaddition reaction between heterodienes and suitable dienophiles. Among heterodienes to be used in such six-membered heterocyclic construction strategy, 3-trialkylsilyloxy-2-aza-1,3-dienes (Fig 1) …
-
The Triplex Diels-Alder Reaction: An Investigation of Enantioselectivity and Scope
Part I. Enantioselective triplex Diels-Alder reaction. An investigation of the enantioselective triplex Diels-Alder reaction has been performed with optically active biaryl sensitizers, (-)1,1$\sp\prime$bis(2,4-dicyanonaphthalene) and (-)1,1$\sp\prime$bis(2,10-dicyanoanthracene). Irradiation of an …
-
Synthetic Equivalents to Acetylene and Allene in the Diels-Alder Reaction
Embargo set by: Seth Robbins for item 67446 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
-
Underutilized Dineophiles: Asymmetric Diels-Alder Reaction of Ynones and Ynoates with Oxygen-Functionalized Dienes
Enantioselective Diels-Alder reactions are among the most powerful tools in the chemist's toolbox. Over the long history of research into the Diels-Alder reaction, the use of alkynyl ketones and alkynyl esters has been limited. The 1,4-cyclohexadiene products are useful intermediates for the …
-
Spontaneity to serendipity: from an enediyne core biosynthetic hypothesis to the hexadehydro-Diels-Alder reaction
… This process, which we have termed a hexadehydro-Diels-Alder (HDDA) reaction, has remained almost entirely unexploited until now. The strategy unites an entirely atom-economical, thermal generation of arynes with their in situ elaboration into a diverse set of polysubstituted benzenoids. HDDA …
-
PHOTOLYSIS OF1-METHYL-9,10-ANTHRAQUINONE DERIVATIVES AND THEIR POTENTIAL REACTIVITY IN THE PHOTOENOL DIELS-ALDER REACTION
… (AQ) have proven to undergo a Photoenol Diels-Alder (PEDA) reaction. The PEDA reaction has been enhanced by the following factors: increased AQ electron density and the geometry of the intermediate 1,4-biradical (BR). Hydrogen bonding of the intermediate BR aids the intermolecular …
-
Strategies for the synthesis of bioactive compounds: biomimetic approaches to the Salinosporamides and the hexadehydro-Diels-Alder reaction
… serendipitous encounter with the hexadehydro-Diels-Alder (HDDA) reaction. The HDDA reaction is a mode of the Diels-Alder reaction that involves [4+2] cycloaddition between a diyne and an alkyne to form aryne reactive intermediate. In Part II we show the scope of substrates that are capable of …
-
Synthesizing Self-Healing and Recyclable Silicones Using the Diels-Alder Reaction as a Cross-Linker: Investigation of Various Dienes and Dienophile Systems
… achieved through the use of thermally reversible Diels-Alder (DA) and retro-Diels-Alder (rDA) reactions. In this work, for the model system, two different dienes (3 and 8) and six dienophile were explored, of which five of the dienophiles are commercially available and one of them was synthesized …
-
The attempted synthesis of 3-trifluoromethyl-2,5-dihydrothiophene 1,1-dioxide
… dioxide (I) was attempted by means of a modified Diels-Alder reaction of 2- trifluoromethyl-1,3-butadiene (II) and sulfur dioxide. Evidence is given to support the structure of the product of the Diels-Alder reaction as that assigned to I.
-
Multicomponent Diels-Alder Sequences of 1-Aminodendralenes
… in multicomponent diene-transmissive Diels-Alder (DTDA) reaction sequences. Dendralenes have previously been shown to generate polycyclic frameworks in a step-economic manner. The 1-amino substituent is shown to promote very high levels of site selectivity in these processes. Chapter 1 …
-
Multicomponent Diels-Alder Sequences of 1-Aminodendralenes
… in multicomponent diene-transmissive Diels-Alder (DTDA) reaction sequences. Dendralenes have previously been shown to generate polycyclic frameworks in a step-economic manner. The 1-amino substituent is shown to promote very high levels of site selectivity in these processes. Chapter 1 …
Page 1 of 5