Zwitterionic Stabilization of a Reactive Cobalt Tris-Isocyanide Monoanion by Cation Coordination
作者:Alex E. Carpenter、Grant W. Margulieux、Matthew D. Millard、Curtis E. Moore、Nils Weidemann、Arnold L. Rheingold、Joshua S. Figueroa
DOI:10.1002/anie.201205058
日期:2012.9.10
A break with tradition: The cation, [Ph3PNPPh3]+ ([PPN]+), was found to provide a stabilizing η2‐arene interaction to the coordinatively unsaturated, tris‐isocyanide monoanion, [Co(CNArMes2)3]−(ArMes2=2,6‐(2,4,6‐Me3C6H2)C6H3); Co=purple, N=light purple, and P=orange). The resulting zwitterion is a source of [Co(CNArMes2)3]− anions, performing nucleophilic additions, carbon–element bond activations
与传统的一个突破:阳离子,[PH 3 PNPPh 3 ] +([PPN] +),被发现是提供一种稳定η 2 -arene相互作用的配位不饱和,三异氰化物单价阴离子,[CO( CNAr Mes2)3 ] -(Ar Mes2 = 2,6-(2,4,6-Me 3 C 6 H 2)C 6 H 3);Co =紫色,N =浅紫色,P =橙色)。产生的两性离子是[Co(CNAr Mes2)3 ]的来源- 阴离子,进行亲核加成,碳元素键活化和多步脱羰反应。
The Crystal and Molecular Structures of Gold(I) Complexes Containing the Electron-Rich P-Donor Ligand Ph3PNPPh2
electron-rich ligand N-diphenylphosphino-triphenylphosphinimine, Ph3PNPPh2, in THF afforded the new complex [AuCl(Ph3PNPPh2)] (1) in good yield. Furthermore, the reaction of [AuHCl4] with Ph3PNPPh2 in a molar ratio of 1:3 in dichloromethane at room temperature yielded the complex salt [Au(Ph3PNPPh2)2]Cl (2) as the dichloromethane solvate beside Ph3PNPPh2Cl2 as the side-product of oxidation. The molecular structures
Catalysts for nucleophilic substitution, systhesis thereof, composition containing them and use thereof
申请人:——
公开号:US20040147390A1
公开(公告)日:2004-07-29
The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R
1
, R
2
, R
3
, R
4
, R
5
, and R
6
, identical or different, are selected among hydrocarbon radicals; the Pn's, advantageously the same, are selected among metalloid elements of column V of a period higher than nitrogen; Z is a metalloid element of column V, advantageously distinct from Pn; preferably a nitrogen (N, P, As, Sb). The invention is applicable to organic synthesis.
本发明涉及用于芳香族亲核取代的新型催化剂。所述催化剂为通式 (I) 的化合物,其中R
1
, R
2
, R
3
, R
4
, R
5
和 R
6
Z 是第 V 列的金属元素,最好与 Pn 不同;最好是氮(N、P、As、Sb)。本发明适用于有机合成。
CATALYSEURS POUR SUBSTITUTION NUCLEOPHILE, LEUR SYNTHESE, COMPOSITION EN CONTENANT ET LEUR UTILISATION
申请人:RHODIA CHIMIE
公开号:EP1377376A1
公开(公告)日:2004-01-07
Catalysts for nucleophilic substitution, synthesis thereof, composition containing them and use thereof
申请人:Schanen Vincent
公开号:US20070225524A1
公开(公告)日:2007-09-27
The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R
1
, R
2
, R
3
, R
4
, R
5
, and R
6
, identical or different, are selected among hydrocarbon radicals; the Pn's, advantageously the same, are selected among metalloid elements of column V of a period higher than nitrogen; Z is a metalloid element of column V, advantageously distinct from Pn; preferably a nitrogen (N, P, As, Sb). The invention is applicable to organic synthesis.