Ruthenium-Catalyzed<i>trans</i>-Selective Hydrostannation of Alkynes
作者:Stephan M. Rummelt、Alois Fürstner
DOI:10.1002/anie.201311080
日期:2014.4.1
In contrast to all other transition‐metal‐catalyzed hydrostannation reactions documented in the literature, the addition of Bu3SnH across various types of alkynes proceeds with excellent trans selectivity, provided the reaction is catalyzed by [Cp*Ru]‐based complexes. This method is distinguished by a broad substrate scope and a remarkable compatibility with functional groups, including various substituents
Process for the ruthenium catalyzed trans-selective hydrostannation of alkynes
申请人:Studiengesellschaft Kohle mbH
公开号:EP2865684A1
公开(公告)日:2015-04-29
The present invention refers to a process for the ruthenium-catalyzed trans-selective hydrostannation of alkynes and the so-obtained products. The inventive process makes use of a tin hydride which is reacted with an alkyne in the presence of a cyclopentadienyl-coordinated ruthenium catalyst.
[EN] PROCESS FOR THE RUTHENIUM CATALYZED TRANS-SELECTIVE HYDROSTANNATION OF ALKYNES<br/>[FR] PROCÉDÉ D'HYDROSTANNATION TRANS-SÉLECTIVE D'ALCYNES PAR CATALYSE AU RUTHÉNIUM
申请人:STUDIENGESELLSCHAFT KOHLE MBH
公开号:WO2015059006A1
公开(公告)日:2015-04-30
The present invention refers to a process for the ruthenium-catalyzed trans-selective hydrostannation of alkynes and the so-obtained products. The inventive process makes use of a tin hydride which is reacted with an alkyne in the presence of a cyclopentadienyl-coordinated ruthenium catalyst.
Interligand Interactions Dictate the Regioselectivity of<i>trans</i>-Hydrometalations and Related Reactions Catalyzed by [Cp*RuCl]. Hydrogen Bonding to a Chloride Ligand as a Steering Principle in Catalysis
作者:Stephan M. Rummelt、Karin Radkowski、Dragoş-Adrian Roşca、Alois Fürstner
DOI:10.1021/jacs.5b01475
日期:2015.4.29
mode in the presence of [Cp*Ru(MeCN)3]PF6 (1) as the catalyst; however, the regioselectivity is often poor with unsymmetrical substrates. This problem can be solved upon switching to a catalyst comprising a [Ru-Cl] bond, provided that the acetylene derivative carries a protic functional group. The R3M unit is then delivered with high selectivity to the alkyne-C atom proximal to this steering substituent