Di(ethylene glycol) vinyl ether: a highly efficient deactivating reagent for olefin metathesis catalysts
摘要:
A highly efficient method for deactivating commonly used olefin metathesis catalysts is described. Inexpensive and commercially available di(ethylene glycol) vinyl ether is found to quench both first- and second-generation Grubbs' carbenes in less than 10 min at room temperature. The resulting ruthenium byproducts are readily removed by silica gel purification. (C) 2009 Elsevier Ltd. All rights reserved.
Catalyst compositions and their use for hydrogenation of nitrile rubber
申请人:ARLANXEO Deutschland GmbH
公开号:US10508156B2
公开(公告)日:2019-12-17
Catalyst compositions based on Ruthenium- or Osmium-based complex catalysts and specific co-catalysts are provided for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions.
Schostakowskii et al., Izvestiya Vysshikh Uchebnykh Zavedenii, Khimiya i Khimicheskaya Tekhnologiya, 1959, vol. 2, p. 769,773
作者:Schostakowskii et al.
DOI:——
日期:——
PROCESS FOR HYDROGENATION OF NITRILE RUBBER USING CATALYST COMPOSITIONS COMPRISING A GRUBBS-HOVEYDA TYPE COMPLEX AND A TERMINAL OLEFIN
申请人:ARLANXEO Deutschland GmbH
公开号:EP2768611B1
公开(公告)日:2018-08-01
CATALYST COMPOSITIONS AND THEIR USE FOR HYDROGENATION OF NITRILE RUBBER
申请人:LANXESS Deutschland Gmbh
公开号:US20150025199A1
公开(公告)日:2015-01-22
This invention relates to novel catalyst compositions based on Ruthenium- or Osmium-based complex catalysts of the Grubbs-Hoveyda, Grela or Zhan type and specific co-catalysts comprising at least one vinyl group, pref. ethyl vinyl ether, and to a process for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions, preferably with a preceding metathesis step using the same complex catalyst as in the hydrogenation step.
HYDROGENATION CATALYST COMPOSITIONS AND THEIR USE FOR HYDROGENATION OF NITRILE RUBBER
申请人:ARLANXEO DEUTSCHLAND GMBH
公开号:US20210198385A1
公开(公告)日:2021-07-01
This invention relates to novel hydrogenation catalyst compositions obtainable from reacting metal-based complex hydrogenation catalysts with specific co-catalysts and to a process for selectively hydrogenating nitrile rubbers in the presence of such novel hydrogenation catalyst compositions.