The Mechanism of Gold(I)-Catalyzed Hydroalkoxylation of Alkynes: An Extensive Experimental Study
作者:Alexander Zhdanko、Martin E. Maier
DOI:10.1002/chem.201303795
日期:2014.2.10
An extensiveexperimentalstudy of the mechanism of gold(I)‐catalyzed hydroalkoxylation of internal alkynes has been conducted by using NMR spectroscopy. This study was focused on the organogold intermediates, observations of actual catalytic intermediates in situ, and the reaction kinetics that are involved in this reaction. Based on the experimental results, a complete mechanistic picture was established
Hydrazone and Oxime Olefination via Ruthenium Alkylidenes
作者:Daniel J. Nasrallah、Troy E. Zehnder、Jacob R. Ludwig、Daniel C. Steigerwald、John J. Kiernicki、Nathaniel K. Szymczak、Corinna S. Schindler
DOI:10.1002/anie.202112101
日期:2022.5.23
Olefination of carbon–heteroatom double bonds is a powerful approach to access highly functionalized olefins. An approach is reported here that uses air-stable and commercially available rutheniumalkylidenes to promote C=N/olefin ring closure. The enabling strategy for this reaction is the use of hydrazones and oximes as readily accessible substrates that preferentially react with ruthenium alkylidenes