Strong Lewis acid air-stable cationic titanocene perfluoroalkyl(aryl)sulfonate complexes as highly efficient and recyclable catalysts for C–C bond forming reactions
PROCESS FOR PRODUCTION OF BIS-QUATERNARY AMMONIUM SALT, AND NOVEL INTERMEDIATE
申请人:Okamoto Kuniaki
公开号:US20120130107A1
公开(公告)日:2012-05-24
Object To provide a method for producing a bis-quaternary ammonium salt efficiently and a novel synthetic intermediate thereof.
Solution The present invention relates to a method for producing a bis-quaternary ammonium salt represented by a general formula [3] which comprises reacting a disulfonic acid ester represented by a general formula [1] (in the formula, definitions of two R
1
's and T are as described in claim
1
) with a tertiary amine represented by a general formula [2] (in the formula, definitions of R
3
to R
5
are as described in claim
1
), and a disulfonic acid ester represented by a general formula [1′] (in the formula, two R
16
's represent independently a halogen atom or a C1-C3 fluoroalkyl group, and two m's represent independently an integer of 1 to 5).
Synthesis and structure of an air-stable bis(pentamethylcyclopentadienyl) zirconium pentafluorbezenesulfonate and its application in catalytic epoxide ring-opening reactions
of air-stability, water tolerance, thermally-stability and strong Lewis-acidity. Moreover, the complex showed high catalytic activity and recyclability in catalytic epoxide ring-opening reactions by amines or alcohols. This catalytic system affords a simple and efficient approach for synthesis of β-amino alcohols or β-alkoxy alcohols.
用[(CH 3)5 Cp] 2 ZrCl 2处理C 6 F 5 SO 3 Ag,成功合成了双(五甲基环戊二烯基)五氟苯磺酸锌锆的空气稳定的单核配合物,显示[[((CH 3)通过X射线分析证实了5 Cp} 2 Zr(CH 3 CN)2(H 2 O)] [OSO 2 C 6 F 5 ] 2 · CH 3 CN(1)。综合大楼1还通过其他技术对其进行了表征,发现具有良好的空气稳定性,耐水性,热稳定性和强路易斯酸度。此外,该络合物在胺或醇的催化环氧化物开环反应中显示出高催化活性和可回收性。该催化体系为合成β-氨基醇或β-烷氧基醇提供了一种简单而有效的方法。
Strong Lewis acids of air-stable binuclear triphenylantimony(V) complexes and their catalytic application in C–C bond-forming reactions
Two air-stable novel Lewisacids of triphenylantimony(V) pentafluorbezenesulfonates (2) and perfluorooctanesulfonates (3) were successfully synthesized and characterized. X-ray studies and thermo-gravimetric analysis found that these complexes showed high anti-hydrolyzability and thermal stability. The high catalytic activity and excellent recyclability of these complexes were achieved in the Michael