本文公开了以硫酸铁( III )为再氧化剂的活性末端烯烃的高效钯催化抗马尔科夫尼科夫氧化缩醛化反应。该方法需要温和的反应条件,并显示出对抗马尔科夫尼科夫产物的高区域选择性以及与多种官能团的相容性。硫酸铁( III ) 是该方法中使用的唯一再氧化剂。各种烯烃,如乙烯基芳烃、芳基烯丙基醚、丙烯酸芳基或苄基丙烯酸酯和高烯丙醇都反应良好,提供抗马尔科夫尼科夫缩醛,其中一些代表正交官能化的 1,3-和 1,4-二氧化化合物。
[EN] NOVEL TRANSITION METAL COMPLEXES, THEIR PREPARATION AND USE<br/>[FR] NOUVEAUX COMPLEXES DE MÉTAUX DE TRANSITION, LEUR PRÉPARATION ET UTILISATION
申请人:LANXESS DEUTSCHLAND GMBH
公开号:WO2014187973A1
公开(公告)日:2014-11-27
Novel transition metal complexes are provided which represent viable catalysts for a broad variety of reactions such as hydrogenation reactions and metathesis reactions. Novel preparation processes are made available via unprecedented routes inter alia not involving structures according to Grubbs I or Grubbs II catalysts.
[EN] RUTHENIUM-BASED COMPLEX CATALYSTS<br/>[FR] CATALYSEURS COMPLEXES À BASE DE RUTHÉNIUM
申请人:GOVERNING COUNCIL OF UNIVERSITY OF TORONTO
公开号:WO2013024119A1
公开(公告)日:2013-02-21
The present invention provides novel Ruthenium-based transition metal complex catalysts comprising specific ligands, their preparation and their use in hydrogenation processes. Such complex catalysts are inexpensive, thermally robust, and olefin selective.
申请人:THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
公开号:EP2949656A1
公开(公告)日:2015-12-02
The present invention provides stable, cyclic bent allene metal complexes and methods of conducting chemical processes, preferably olefin hydrogenation, comprising contacting an olefin substrate, preferably an unsaturated polymer, with a cyclic bent allene metal complex as described herein, under hydrogenation conditions.
wherein
M is a transition metal selected from Groups 6-11 of the periodic table,
L1 is a cyclic bent allene ligand according to the general formula (II)
[EN] RUTHENIUM- OR OSMIUM-BASED COMPLEX CATALYSTS<br/>[FR] CATALYSEURS COMPLEXES À BASE DE RUTHÉNIUM OU D'OSMIUM
申请人:LANXESS DEUTSCHLAND GMBH
公开号:WO2014198658A1
公开(公告)日:2014-12-18
The present invention provides novel ruthenium or osmium based complex structures with a unique combination of ligands comprising a Schiff-base type ligand, a N-heterocyclic carbene ligand and a CO ligand which can be prepared according to two different routes involving easily accessible starting materials and which represent excellent catalysts for hydrogenating unsaturated compounds, oligomers and polymers, in particular at unforeseeably low temperatures.
[EN] RUTHENIUM- OR OSMIUM-BASED COMPLEX CATALYSTS<br/>[FR] CATALYSEURS DE TYPE COMPLEXES À BASE DE RUTHÉNIUM OU D'OSMIUM
申请人:LANXESS DEUTSCHLAND GMBH
公开号:WO2014198022A1
公开(公告)日:2014-12-18
Disclosed are ruthenium or osmium based complex structures with a unique combination of ligands comprising a Schiff-base type ligand, a N-heterocyclic carbine ligand and a CO ligand. Further disclosed are the preparation processes of the said complex structures using easily accessible starting materials. The complex structures can be used as catalysts for hydrogenation of unsaturated compounds, oligomers and polymers at unforeseeably low temperatures.