[EN] SUBSTITUTED AMINO-BENZIMIDAZOLES, MEDICAMENTS COMPRISING SAID COMPOUND, THEIR USE AND THEIR METHOD OF MANUFACTURE<br/>[FR] AMINO-BENZIMIDAZOLES SUBSTITUÉS, MÉDICAMENTS COMPRENANT LEDIT COMPOSÉ, LEUR UTILISATION ET LEUR PROCÉDÉ DE FABRICATION
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2009092566A1
公开(公告)日:2009-07-30
The present invention relates to substituted amino-benzimidazoles of general formula (1) wherein the groups R1 to R14 and A, are defined as in the specification and claims and the use thereof for the treatment of Alzheimer's disease (AD) and similar diseases.
Preparation of aryl ketones via Ni-catalyzed Negishi-coupling reactions with acid chlorides
作者:Seung-Hoi Kim、Reuben D. Rieke
DOI:10.1016/j.tetlet.2011.01.135
日期:2011.3
A Ni-catalyst-catalyzed cross-coupling reaction of organozinc reagents with acid chlorides has been successfully developed. Mild reaction conditions were required to complete the coupling reactions affording the corresponding aryl ketones in good to excellent yields.
Catalyst for polymerization of olefin and process for the preparation of olefin polymer
申请人:SHOWA DENKO KABUSHIKI KAISHA
公开号:EP0640624A1
公开(公告)日:1995-03-01
A catalyst for producing a polyolefin having a high melting point and a high stereoregularity, which comprises: (A) a solid catalyst component containing titanium, magnesium and halogen, (B) an organic aluminum compound, and (C) an organic silicon compound represented by formula (1):
wherein R¹, R² and R³ each represents a C₁₋₃ hydrocarbon group.
Catalyst for olefin polymerization and process for producing polyolefin using the same
申请人:JAPAN POLYOLEFINS CO., LTD.
公开号:EP0717053A2
公开(公告)日:1996-06-19
A catalyst for olefin polymerization comprising: (A) a solid catalyst component comprising a titanium compound, a magnesium compound, and a halogen compound; (B) an organoaluminum compound; (C) a first organosilicon compound represented by formula (I):
wherein R¹ represents a hydrocarbon group having 1 to 4 carbon atoms; R² represents a hydrocarbon group having 1 to 6 carbon atoms or a hydrogen atom; R³ and R⁴ each represent a hydrocarbon group having 1 to 6 carbon atoms; and R², R³, and R⁴ may be the same or different; and (D) a second organosilicon compound represented by formula (II):
wherein R⁵ represents a hydrocarbon group having 1 to 4 carbon atoms; and R⁶, R⁷, and R⁸, which may be the same or different, each represent a hydrocarbon group having 1 to 6 carbon atoms or a hydrogen atom.
3-alkoxypropionic ester derivative, olefin polymerization catalyst, and process for preparation of polyolefin
申请人:SHOWA DENKO KABUSHIKI KAISHA
公开号:EP0704424A1
公开(公告)日:1996-04-03
A 3-alkoxypropionic ester derivative, an olefin polymerization solid catalyst component using the same, an olefin polymerization catalyst using the same, and a process for the preparation of a polyolefin using the same. The 3-alkoxypropionic ester derivative is represented by formula (I):
wherein R¹ represents a hydrocarbon group having from 1 to 10 carbon atoms; R² represents a hydrocarbon group having from 1 to 20 carbon atoms; R³ represents a hydrocarbon group having from 1 to 20 carbon atoms; and R⁴ represents a branched hydrocarbon group having 3 or more carbon atoms.