Hydroxyl-Assisted trans-Reduction of 1,3-Enynes: Application to the Formal Synthesis of (+)-Aspicilin

Autor: Alois Fürstner, Sebastian Schaubach, Kenichi Michigami
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