Hydroxyl-Assisted trans-Reduction of 1,3-Enynes: Application to the Formal Synthesis of (+)-Aspicilin
Autor: | Alois Fürstner, Sebastian Schaubach, Kenichi Michigami |
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Rok vydání: | 2016 |
Předmět: | |
Zdroj: | Synthesis. 49:202-208 |
ISSN: | 1437-210X 0039-7881 |
DOI: | 10.1055/s-0035-1562381 |
Popis: | 1,3-Enynes are hardly amenable to trans-hydrometalation reactions, because they tend to bind the standard ruthenium catalysts too tightly. However, catalysts comprising a [Cp*Ru–Cl] unit allow such compounds to be used, provided they contain an OH group next to the triple bond. This aspect is illustrated by a formal synthesis of the lichen-derived macrolide aspicilin. The required macrocyclic enyne precursor was formed by an efficient ring-closing alkyne metathesis reaction. |
Databáze: | OpenAIRE |
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