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 5 of 5 for “"bromonium"”.
-
Bromonium-Initiated Epoxide-Opening Cascades : total Synthesis of ent-Dioxepandehydrothyrsiferol and Synthetic Studies toward (+)-Scholarisine A
CHAPTER I. Bromonium-Initiated Epoxide-Opening Cascades: Total Synthesis of ent-Dioxepandehydrothyrsiferol Our foray into the total synthesis of ent-dioxepandehydrothyrsiferol has led to the discovery and development of the bromonium-initiated epoxide-opening cascade. This transformation constructs …
-
Reagents and Strategies for the Total Synthesis of Halogenated Natural Products
… this purpose and in doing so developed a novel bromonium reagent (BDSB, bromodiethylsulfonium bromopentachloroantimonate). This easily synthesized and handled reagent proved capable of cyclizing an array of polyene precursors rapidly, in good yield, and with high diastereocontrol. The …
-
The preparation and reactions of some 1, 2-dipolar species /|nI. D. Brindle. -- 260 St. Catharines, Ont. : [s. n.],
… the unusual acetylenic "bromonium" ion. Hydrogenolysis of both heterocyclic compounds gave the same product. The preparation was extended by forming 2,2-dimethyl-4-bromoisoxazolinium bromide from N-allylN, N-dimethylamine-N-oxide. Sections 3 and 4 cover a number of …
-
Synthesis and determination of the absolute configuration of Armatol A through a polyepoxide cyclization cascade : revision of the proposed structures of Armatols A-F
… synthesis of a bromooxepane ring via a bromonium-initiated epoxide-opening cyclization was explored. Functionalization of the primary alcohol formed from this cascade allowed for a variety of coupling strategies to be explored to form the carbon framework of armatol A. Difficulties …
-
Asymmetric Lewis base catalysis: I. Lewis base catalyzed halogenation and development of an enantioselective bromocycloetherification reaction; II. enantioselective addition of silyl ketene imines to carbonyl electrophiles
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-06-15T13:39:00Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Thesis-6-12.docx: 11084823 bytes, checksum: 0609048b408ae3adf1f485e3a9dde5d3 (MD5) Burk_Matthew.pdf: 14255171 bytes, …