Phosphinyl Guanidine Compounds, Metal Salt Complexes, Catalyst Systems, and Their Use to Oligomerize or Polymerize Olefins
申请人:SYDORA Orson J.
公开号:US20130331629A1
公开(公告)日:2013-12-12
The present application relates to N
2
-phosphinyl guanidine metal salt complexes. The present application also relates to catalyst systems comprising N
2
-phosphinyl guanidine metal salt complexes and processes for making catalyst systems comprising N
2
-phosphinyl guanidine metal salt complexes. The present application also relates to utilizing N
2
-phosphinyl guanidine metal salt complexes in processes of oligomerizing or polymerizing olefins.
Zeolite-catalyzed synthesis of 2,3-unsubstituted benzo[b]furans via the intramolecular cyclization of 2-aryloxyacetaldehyde acetals
作者:Nan Sun、Peng Huang、Yifan Wang、Weimin Mo、Baoxiang Hu、Zhenlu Shen、Xinquan Hu
DOI:10.1016/j.tet.2015.05.029
日期:2015.7
An efficient and environmentally benign heterogeneous catalytic process for the synthesis of 2,3-unsubstituted benzo[b]furans has been established via the intramolecular cyclization of 2-aryloxyacetaldehyde acetals. By utilizing tin-exchanged H-β zeolite (Sn-β) as catalyst, a wide range of functionalized 2,3-unsubstituted benzo[b]furans could be prepared in good to excellent yields. The Sn-β zeolite
通过2-芳氧基乙醛缩醛的分子内环化,已经建立了一种有效的,对环境无害的非均相催化方法,用于合成2,3-未取代的苯并[ b ]呋喃。通过使用锡交换的H-β沸石(Sn-β)作为催化剂,可以以良好或极好的收率制备各种功能化的2,3-未取代的苯并[ b ]呋喃。Sn-β沸石催化剂还在间位取代的2-芳氧基乙醛缩醛的环化上表现出优异的形状选择性,并且优选形成高达97%的区域选择性的6-取代的异构体。而且,Sn-β沸石可以容易地回收和再利用而没有任何明显的活性损失。
Nickel catalyzed dealkoxylative C<sub>sp2</sub>–C<sub>sp3</sub> cross coupling reactions – stereospecific synthesis of allylsilanes from enol ethers
The application of cyclic and acyclic enol ethers as electrophiles in cross coupling reactions offers new possibilities for the preparation of functional compounds.
环状和非环状烯醇醚作为亲电试剂在交叉偶联反应中的应用为功能化合物的制备提供了新的可能性。
METHODS FOR THE CONVERSION OF A SUBSTITUTED FURAN TO A SUBSTITUTED PYRROLE
申请人:Kreischer Bruce E.
公开号:US20120083609A1
公开(公告)日:2012-04-05
The present invention discloses processes for producing substituted pyrrole compounds, such as 2,5-disubstituted pyrroles. Synthetic processes which directly convert substituted furan compounds to substituted pyrrole compounds, via a reaction of the substituted furan compound with ammonia and/or an ammonium salt in the presence of a catalyst, also are described.
[EN] PHOSPHINYL AMIDINE COMPOUNDS, METAL COMPLEXES, CATALYST SYSTEMS, AND THEIR USE TO OLIGOMERIZE OR POLYMERIZE OLEFINS<br/>[FR] COMPOSÉS DE PHOSPHINYLAMIDINE, COMPLEXES DE MÉTAL, SYSTÈMES DE CATALYSEUR, ET LEUR UTILISATION POUR OLIGOMÉRISER OU POLYMÉRISER DES OLÉFINES
申请人:CHEVRON PHILLIPS CHEMICAL CO
公开号:WO2011082192A1
公开(公告)日:2011-07-07
N2-phosphinyl amidine compounds, N2-phosphinyl amidinates, N2-phosphinyl amidine metal salt complexes, N2-phosphinyl amidinate metal salt complexes are described. Methods for making N2-phosphinyl amidine compounds, N2-phosphinyl amidinates, N2-phosphinyl amidine metal salt complexes, and N2-phosphinyl amidinate metal salt complexes are also disclosed. Catalyst systems utilizing the N2-phosphinyl amidine metal salt complexes and N2-phosphinyl amidinate metal salt complexes are also disclosed along with the use of the N2-phosphinyl amidine compounds, N2-phosphinyl amidinates, N2-phosphinyl amidine metal salt complexes, and N2-phosphinyl amidinate metal salt complexes for the oligomerization and/or polymerization of olefins.