Asymmetric hydrogenation approaches to valuable, acyclic 1,3-hydroxymethyl chirons |
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Authors: | Zhu Ye Burgess Kevin |
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Institution: | Department of Chemistry, Texas A & M University, Box 30012, College Station, Texas 77841, USA. |
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Abstract: | An iridium carbene oxazoline complex was used to catalyze hydrogenations of trisubstituted alkenes to give terminal and internal 1,3-hydroxymethyl chirons. The products are accessible in all possible stereoisomeric forms. These hydrogenations do not require strongly coordinating functionalities on the substrate, and in some key cases, catalyst- rather than substrate-controlled stereoselectivities are observed. It is hypothesized that these reactions would not be feasible using iridium or rhodium diphosphine complexes. |
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