Preparation of Pyrido[2,3-<i>b</i>
]indole Derivatives Using Silicates of Group 1 and 2 Metals
作者:Setareh Sheikh、Abbas Fazlinia
DOI:10.1002/jhet.3284
日期:2018.10
efficient synthesis of 2,4‐diaryl‐9H‐pyrido[2,3‐b] indole derivatives in aqueous medium via the three‐component reaction of indolin‐2‐one, a chalcone and ammonium acetate was developed using Na2SiO3, K2SiO3, Li2SiO3, CaSiO3, MgSiO3, BaSiO3, SrSiO3, and ZnSiO3 as catalysts. Results of activity evaluations indicated that among of the metal silicate used alkali metal silicates exhibits much higher activity than
2,4-二芳基9的高效合成ħ -吡啶并[2,3- b ]在水性介质中的吲哚衍生物通过二氢吲哚-2-酮的三组分反应,查耳酮和乙酸铵中使用Na开发2的SiO 3,K 2的SiO 3,李2的SiO 3,卡西欧3,MgSiO 3,BaSiO 3,SrSiO 3,和ZnSiO 3作为催化剂。活性评估结果表明,在所使用的金属硅酸盐中,由于较强的碱度和在水中的溶解度,碱金属硅酸盐显示出比其他样品更高的活性。在最佳反应条件下,所有与各种芳族醛的反应均在较短的反应时间内提供了高收率。