symmetrical imidazolinium chloride saltsbearing secondary N-alkyl substituents were synthesized in good yield by the reaction of N,N′-dialkylethane-1,2-diamines and HC(OEt)3 in the presence of NH4Cl. These salts were characterized by spectroscopic methods. All compounds were tested as enzyme inhibitory agents. These novel symmetrical imidazolinium chloride salts derivatives (3a-h) effectively inhibited
摘要 通过N,N'-二烷基乙烷-1,2-二胺与HC(OEt)3在NH4Cl存在下的反应,合成了一系列带有仲N-烷基取代基的对称咪唑啉氯化物盐。这些盐通过光谱方法表征。所有化合物均作为酶抑制剂进行测试。这些新型对称咪唑啉氯化物盐衍生物 (3a-h) 有效抑制细胞溶质 hCA I 和 hCA II、BChE、α-糖苷酶和 AChE,hCA I 的 Ki 值为 18.41–121.73 nM,hCA 的 Ki 值为 12.50–63.12 nM II,AChE 为 3.72–34.58 nM,BChE 为 5.50–32.36 nM,α-糖苷酶分别为 94.72–364.51 nM。由于 CO2 水合、HCO3− 重吸收机制,CA 同工酶通过排泄和分泌质子 (H+) 发挥重要作用,包括酸碱平衡稳态,和肾脏 NH4+ 输出。此外,分子建模是一种用于估计带有次级翼尖基团的对称咪唑啉氯化物盐的结合邻近
Design of bis-NHC Ru-complexes featuring diarylmethylene N-substituents for olefin metathesis
New ruthenium indenylidene complexes containing N-heterocyclic carbene (NHC) ligands were synthesized and evaluated in olefinmetathesis. The presence of two symmetrical saturated NHCs featuring Ndiarylmethylene fragments (R= H, OMe or F) led to robust ruthenium precatalysts with a good latency. A kinetic study was investigated showing that a thermal stimulus (>60 °C) is required to reach an efficient
Rhodium(I) N-heterocyclic carbene complexes as catalysts for the hydrosilylation of aromatic ketones with triethylsilane
作者:Beyhan Yiğit、Murat Yiğit、İsmail Özdemir
DOI:10.1016/j.ica.2017.07.055
日期:2017.10
Abstract New rhodium(I) N- heterocyclic carbenecomplexes were synthesized in good yields by the reactions of rhodium dimer [Rh(OMe)COD] 2 with two equivalent of 1,3-dialkylimidazolinium chloride salts in tetrahydrofuran. All of the complexes were characterized using elemental analysis, 1 H NMR and 13 C NMR spectroscopy. These complexes were used as catalysts in the hydrosilylation of acetophenone
摘要通过铑二聚体[Rh(OMe)COD] 2与两当量的1,3-二烷基咪唑啉鎓氯化物在四氢呋喃中的反应,以高收率合成了新的铑(I)N-杂环卡宾配合物。使用元素分析,1 H NMR和13 C NMR光谱对所有配合物进行表征。这些配合物在80°C下将苯乙酮衍生物与三乙基硅烷氢化硅烷化反应中用作催化剂。这些Rh(I)-NHC配合物显示出对苯乙酮衍生物进行氢化硅烷化的良好催化性能,并且通过使用1mol%的铑配合物以中等至良好的产率获得了相应的氢化硅烷化产物。
Electrochemical reduction of di-Schiff bases. Synthesis of piperazines, indoloindoles, diazepines, and diazocines
作者:Russell W. Koch、Raymond E. Dessy
DOI:10.1021/jo00144a010
日期:1982.11
van Alphen; Robert, Recueil des Travaux Chimiques des Pays-Bas, 1935, vol. 54, p. 361,365