A Two-Component Alkyne Metathesis Catalyst System with an Improved Substrate Scope and Functional Group Tolerance: Development and Applications to Natural Product Synthesis
作者:Sebastian Schaubach、Konrad Gebauer、Felix Ungeheuer、Laura Hoffmeister、Marina K. Ilg、Conny Wirtz、Alois Fürstner
DOI:10.1002/chem.201601163
日期:2016.6.13
standard catalyst 1 largely failed to effect the critical macrocyclization, whereas the two‐component system was fully operative. A study directed toward the quinolizidine alkaloid lythrancepine I features yet another instructive example, in that a triyne substrate was metathesized with the help of 3/11 such that two of the triple bonds participated in ring closure, while the third one passed uncompromised
The Formation of Intermediate Compounds in Hydrocarbon Syntheses by the Friedel and Crafts Reaction, and the Preparation of Certain Symmetrical Trialkylbenzenes
作者:James F. Norris、David. Rubinstein
DOI:10.1021/ja01874a046
日期:1939.5
The Condensation of Aliphatic Alcohols with Aromatic Hydrocarbons. I. The Preparation of Mesitylene and sym-Triethylbenzene