reagents (trifluoromethyl)(4-nitrophenyl)bis(carbomethoxy)methylide (1g) and (trifluoromethyl)(3-chlorophenyl)bis(carbomethoxy)methylide (1j) through structure-activity study was described. Under mild conditions, reagent 1g reacted with β-ketoesters and silyl enol ethers to give α-trifluoromethylated-β-ketoesters or α-trifluoromethylated ketones in high yields. In addition, reagent 1g could serve as
molecular scaffolds in bioactive molecules. We here present an operationally simple, high yielding and scalable method for regioselective 3-acylation of 2-substitutedindoles under basic conditions using functionalized acid chlorides. The method shows good tolerance to both electron-withdrawing and donating substituents on the indole scaffold and gives ready access to a variety of functionalized 3-acylindole
Green approach for the synthesis of 3‐methyl‐1‐phenyl‐4‐((2‐phenyl‐1H‐indol 3‐yl)methylene)‐1H‐pyrazole‐5(4H)‐ones and their DNA Cleavage, antioxidant, and antimicrobial activities
作者:Madhuri Modi、Meenakshi Jain
DOI:10.1002/jhet.3726
日期:2019.12
3‐Methyl‐1‐phenyl‐4‐((2‐phenyl‐1H‐indol‐3‐yl)methylene)‐1H‐pyrazol‐5(4H)‐ones (5a‐i) was prepared by the condensation reaction of different 3‐formyl‐2‐phenylindole derivatives (2a‐i) and 3‐methyl‐1‐phenyl‐2‐pyrazoline‐5‐one in quantitative yield by applying various green synthetic methods as grinding, microwave irradiation using different catalysts under solvent‐free mild reactionconditions with high
通过缩合反应制备了3-甲基-1-苯基-4-(((2-苯基-1 H-吲哚-3-基)亚甲基)-1 H-吡唑-5(4H)-ones(5a-i)通过应用各种绿色合成方法(如研磨,在溶剂下使用不同催化剂的微波辐照)定量定量获得不同的3-甲酰基-2-苯基吲哚衍生物(2a-i)和3-甲基-1-苯基-2-吡唑啉-5-酮-无温和的反应条件,产品收率高。根据元素分析,红外,1 HNMR,13对合成化合物的结构进行了表征1 H NMR和质谱数据。筛选合成的化合物的自由基清除,抗菌和DNA裂解活性。属于3-甲基-1-苯基-4-(((2-苯基-1 H-吲哚-3-基)亚甲基)-1H-吡唑-5(4H)-ones系列的大多数受试化合物都显示出良好的前景活动。
Synthesis, spectral, and antimicrobial studies of 1-butyl-3-substituted-4-(2-aryl-1H-indol-3-yl)-2-azetidinones
作者:Vijai N. Pathak、Ragini Gupta、Meenu Garg
DOI:10.1002/hc.20052
日期:——
Ketene generated from acetyl chloride or chloroacetylchloride adds on indolyl Schiff's base double bond to afford 1-butyl-3-substituted-4-(2-aryl-1H-indol-3-yl)-2-azetidinones in THF. The reaction proceeds stereospecifically via concerted trans [2+2] cycloaddition. The synthesized compounds have been characterized by elemental analyses and spectral data (IR, PMR, and mass). All synthesized compounds
The invention relates to substituted indole Mannich bases of formula (I), a method for the production thereof, medicaments containing said compounds and the use of said compounds in the production of medicaments, especially medicaments that are used to treat pain. In formula (I), R1,R2, R4-R7 have the meanings cited in claim 1, R3=formula (a) and R13=(substituted) phenyl.