A new [2.2]paracyclophane-based electron-rich and sterically bulky monophosphine ligand has been synthesized by an efficient and straightforward method. When combined with palladium, this ligand shows excellent performance in the Buchwald–Hartwig amination and Suzuki–Miyaura coupling reactions of various aryl chlorides. In both types of reactions, ortho-substituted, deactivated aryl chlorides are shown to be viable substrates. However, the Suzuki–Miyaura coupling appears to be easier, with palladium loading at 0.1 mol% being feasible.
[EN] PARACYCLOPHANE-BASED LIGANDS, THEIR PREPARATION AND USE IN CATALYSIS<br/>[FR] LIGANDS À BASE DE PARACYCLOPHANE, PRÉPARATION DE CEUX-CI ET UTILISATION DANS UNE CATALYSE
申请人:JOHNSON MATTHEY PLC
公开号:WO2009027729A1
公开(公告)日:2009-03-05
A substituted paracyclophane is described of formula (I) wherein X1 and X2 are linking groups comprising between 2 to 4 carbon atoms, Y1 and Y2 are selected from the group consisting of hydrogen, halide, oxygen, nitrogen, alkyl, cycloalkyl, aryl or heteroaryl and Z is a substituted or unsubstituted alkyl group, aryl group or heteroaryl group. Preferably X1 and X2 are -(C2H4)- and Z is a substituted aryl group. The substituted paracyclophane provides transition metal catalysts that are useful in C-C and C-N bond formation and asymmetric hydrogenation reactions.
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION AND DISPLAY DEVICE
申请人:HIRANO Shigenobu
公开号:US20090231663A1
公开(公告)日:2009-09-17
An electrochromic compound having in the molecule at least an adsorbable group, a redox chromophore and a spacer portion, and represented by the following General Formula (1):
wherein A represents the adsorbable group, C represents the redox chromophore, and X represents the spacer portion represented by the following formula;
wherein R
1
and R
3
each represent an aliphatic hydrocarbon group or an aromatic derivative group, R
2
represents a hydrogen atom or a monovalent group.
Active substance combination comprising a compound with npy receptor affinity and a compound with 5-ht6 receptor affinity
申请人:Torrens Jover Antoni
公开号:US20070059364A1
公开(公告)日:2007-03-15
The present invention relates to an active substance combination comprising at least one compound with neuropeptide Y-receptor affinity and at least one compound with 5-HT6 receptor affinity, a medicament comprising said active substance combination, and the use of said active substance combination for the manufacture of a medicament.
ACTIVE SUBSTANCE COMBINATION COMPRISING A COMPOUND WITH NPY RECEPTOR AFFINITY AND A COMPOUND WITH 5-HT6 RECEPTOR AFFINITY
申请人:Torrens Jover Antoni
公开号:US20120128768A1
公开(公告)日:2012-05-24
The present invention relates to an active substance combination comprising at least one compound with neuropeptide Y-receptor affinity and at least one compound with 5-HT6 receptor affinity, a medicament comprising said active substance combination, and the use of said active substance combination for the manufacture of a medicament.