本文選題：-二甲酰胺吡啶 + 二甲基雙吡咯甲烷　； 參考：《有機(jī)化學(xué)》2017年11期

【摘要】：將前體N,N'-(3-胺基苯基)-2,6-二甲酰胺吡啶(1)和5,5-二甲基-1,9-二甲�；量┘淄�(2)進(jìn)行縮合作用得到[1+1]Schiff堿大環(huán)3.進(jìn)一步將Schiff堿大環(huán)3還原得到飽和大環(huán)4.采用~1H NMR,FT-IR,FABMS和元素分析等對(duì)大環(huán)的組成進(jìn)行了表征,通過(guò)X射線單晶衍射技術(shù)解析了大環(huán)4的晶體結(jié)構(gòu).采用紫外-可見(jiàn)吸收光譜、核磁和等溫量熱滴定等技術(shù)對(duì)大環(huán)3和4分別與AcO~-陰離子的鍵合作用進(jìn)行了考察,獲得了反應(yīng)的鍵合比、鍵合常數(shù)(K)及Δ_(r)H_m,Δ_(r)S_m,Δ_(r)G_m等熱力學(xué)參數(shù)信息.結(jié)果表明,大環(huán)3與AcO~-氫鍵作用的鍵合比為1∶1,鍵合常數(shù)K_a≈10~5 L·mol~(-1),具有更柔性的環(huán)狀骨架大環(huán)4與AcO~-作用的鍵合比為1∶2,K_(a1)≈10~3 L·mol~(-1),K_(a2)≈10~5 L·mol~(-1).
[Abstract]:[1] Schiff base macrocyclic 3 was obtained by the condensation of the precursors Nu Nu (3-aminophenyl) -2n (6-diformamide pyridyl) and 5 (5) -dimethyl-1-dimethyl-9-dipyrrolidine (dipyrrolidine) 2). The saturated macrocyclic 4 was obtained by further reduction of Schiff base macrocyclic 3. The composition of macroring was characterized by 1H NMRFT-IRFBMS and elemental analysis. The crystal structure of macroring 4 was analyzed by X-ray single crystal diffraction technique. UV-Vis absorption spectra, NMR and isothermal calorimetric titration techniques were used to investigate the interaction of macrocyclic 3 and 4 with AcON-anions, respectively. The thermodynamic parameter information, such as the bonding ratio, the bonding constant K) and the structure of the reaction were obtained. The results show that the bonding ratio of macrocyclic 3 to AcOO-H bond is 1: 1, the bonding constant K _ a 鈮，

本文編號(hào)：2045634