Abstract
Treatment of the well-defined complexes (TTP)Ti(η2-EtC≡CEt) or transs-(TTP)Ti(THF)2 with vicinal dichloroalkanes or dichloroalkenes results in the production of alkenes or alkynes and 2 equiv of (TTP)TiCl. This net two-electron redox reaction arises from two formal one-electron reduction processes mediated by chlorine atom transfer. Oxygen atom transfer occurs when the Ti(II) porphyrins are treated with several different sulfoxides or epoxides, resulting in two-electron redox products, (TTP)Ti=O, the sulfide or alkene, and EtC≡CEt or THF. The electronic properties of the substituents on the sulfoxides or epoxides correlate with the yield and rate of the deoxygenation reactions.
Original language | English |
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Pages (from-to) | 356-360 |
Number of pages | 5 |
Journal | Journal of Organic Chemistry |
Volume | 63 |
Issue number | 2 |
DOIs | |
Publication status | Published - 23 Jan 1998 |
Externally published | Yes |