In the presence of Pd/Al2O3, various diphenylamines could be synthesized through acceptorless formal arylation using urea as a nitrogen source and cyclohexanones as arylation sources.
A CuBr-catalyzed coupling reaction of hydroxylaminehydrochloride and arylboronic acids is described, providing a simple and efficient methodology for the synthesis of symmetric diaryl amines. The reaction shows good functional group tolerance.
A simple and efficient CuII-catalyzed coupling reaction of arylboronic acids with aqueous ammonia under air is described. The reaction was conducted under atmospheric pressure and no additional ligand was required. Benzoic acid was added to tune the basicity of the reaction system.
Process for producing compound, catalyst component for addition polymerization, process for producing catalyst for addition polymerization, and process for producing addition polymer
申请人:Oshima Hideki
公开号:US20050222351A1
公开(公告)日:2005-10-06
There are provided (1) a process for producing a compound, which comprises the step of contacting a compound (A) defined by the formula, M
1
L
1
3
, a compound (B) defined by the formula, R
1
t-1
TH, and a compound (C) defined by the formula, R
2
t-2
TH
2
; (2) a catalyst component for addition polymerization, which comprises a compound produced by said process; (3) a process for producing a polymerization catalyst, which comprises the step of contacting said catalyst component with a transition metal compound and an optional organoaluminum compound; and (4) a process for producing an addition polymer, which comprises the step of addition polymerizing an addition polymerizable monomer in the presence of a catalyst produced by said process.
TRANSITION METAL COMPOUND AND CATALYST FOR OLEFIN POLYMERIZATION
申请人:HANAOKA Hidenori
公开号:US20110319578A1
公开(公告)日:2011-12-29
A transition metal compound represented by the formula (1-1) or the formula (1-2) (M is a transition metal atom) and a process for producing a catalyst for olefin polymerization comprising a step of bringing the transition metal compound into contact with a co-catalytic component for activation.