Thion- und Dithioester, 40. Mitt. Zur Reaktion von Dithionmalonsäureestern mit nucleophilen Stickstoffbasen
作者:Klaus Hartke、Heinz-Georg Müller
DOI:10.1002/ardp.19883211208
日期:——
H2S‐Abspaltung zu den 3‐Amino‐thioacrylsäure‐O‐estern 11. Die Alkalisalze von 1 setzen sich mit Aminen unter. Alkohol‐Eliminierung zu den Malondithioamiden 12 um. Durch oxidative Ringschluß erhält man aus 11 die Isothiazole 16–18. Die Kondensation von 1 mit Hydrazinen liefert die Pyrazole 20–22; mit Amidinen entstehen die Pyrimidine 23 und 24.
HARTKE, KLAUS;MULLER, HEINZ-GEORG, ARCH. PHARM., 321,(1988) N 12, C. 863-871
作者:HARTKE, KLAUS、MULLER, HEINZ-GEORG
DOI:——
日期:——
Process for Producing Olefin Copolymerization Catalyst and Process for Producing Olefin Copolymer
申请人:NAKAHARA Shinya
公开号:US20080227937A1
公开(公告)日:2008-09-18
A process for producing an olefin copolymerization catalyst, comprising the step of contacting, with one another, (A) a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom, (B) an organoaluminum compound and/or organoaluminumoxy compound, and (C) a nitrogen-containing aromatic heterocyclic compound, whose one or more carbon atoms adjacent to its nitrogen atom are linked to an electron-donating group, or a group containing an electron-donating group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.
US7605215B2
申请人:——
公开号:US7605215B2
公开(公告)日:2009-10-20
Reactivity studies of (η6-arene)ruthenium dimeric complexes towards pyrazoles: isolation of amidines, bis pyrazoles and chloro bridged pyrazole complexes
作者:P. Govindaswamy、Yurij A. Mozharivskyj、Mohan Rao Kollipara
DOI:10.1016/j.jorganchem.2004.07.036
日期:2004.9
acetonitrile under the influence of [(η6-p-cymene)RuCl2]2. The complex [(η6-C6Me6)Ru(μ-Cl)Cl]22 reacts with pyrazole ligands in acetonitrile to yield bis-pyrazole derivatives such as [(η6-C6Me6)Ru (3,5-HRR′pz)2Cl](BF4) (5a–b), where R, R′ = H (5a); H, CH3 (5b), as well as dimericcomplexes of pyrazole substituted chloro bridged derivatives [(η6-C6Me6)Ru(μ-Cl) (3,5-HRR′pz)}2](BF4)2 (5c–g), where R, R′ = CH3 (5c);
络合物[(η 6 - p -cymene)的Ru(μ-Cl)的CL] 2下1进行反应与吡唑配体(图3a -克)的乙腈,得到的类型的脒衍生物[(η 6 - p -cymene)茹(L)(3,5-HRR'pz)](BF4)2(4a – f),其中L = HNC(Me)3,5-RR'pz}; R,R'= H(4a); H,CH 3(4b);H,CH 3(4b)。C 6 H 5(4c);C 6 H 5(4c)。CH 3,C 6 H 5(4d)OCH 3(4e); 和OC 2 H 5(4f)。所述配体大号在原位通过3,5- HRR'pz的用乙腈[(η的影响下,缩合而得6 - p的RuCl -cymene)2 ] 2。络合物[(η 6 -C 6我6)的Ru(μ-Cl)的CL] 2种2发生反应与吡唑配体在乙腈中,得到双-吡唑衍生物,例如[(η 6 -C 6我6)的Ru(3, 5-HRR'pz)2 Cl](BF