Thesis advisor: James P. Morken / Platinum-catalyzed enantioselective 1,4-diboration of cyclic 1,3-dienes is reported, providing enantioenriched 1,4-bis(boronic) esters in good yield and up to 96:4 er. The analogous diboration reaction of imines generated enantioenriched alpha-amino boronic esters, which are valuable therapeutic candidates and useful synthetic building blocks. Alpha-substituted allyl bis(boronic) esters, which are derived from 1,2-diboration of 1,3-dienes, undergo double allylation with 1,4-dicarbonyls to afford cyclic 1,4-diols bearing four contiguous stereocenters in a one-pot fashion with moderate to excellent diastereoselectivity. The development of a synthesis of geminal bis(boronic) esters is disclosed. These unique compounds were utilized in an alkoxide-promoted deborylative alkylation to access primary, secondary and tertiary boronic esters. / Thesis (PhD) — Boston College, 2015. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Chemistry.
| Identifer | oai:union.ndltd.org:BOSTON/oai:dlib.bc.edu:bc-ir_104130 |
| Date | January 2015 |
| Creators | Hong, Kai |
| Publisher | Boston College |
| Source Sets | Boston College |
| Language | English |
| Detected Language | English |
| Type | Text, thesis |
| Format | electronic, application/pdf |
| Rights | Copyright is held by the author, with all rights reserved, unless otherwise noted. |
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