In silico studies and β-cyclodextrin mediated neutral synthesis of 4-oxo-4,5,6,7-tetrahydroindoles of potential biological interest
作者:G. Dhananjaya、A.V. Dhanunjaya Rao、Kazi Amirul Hossain、Venkateswara Rao Anna、Manojit Pal
DOI:10.1016/j.tetlet.2020.151972
日期:2020.6
Prompted by the in silico docking study predictions the first β-cyclodextrin (β-CD) mediated synthesis of 4-oxo-4,5,6,7-tetrahydroindoles in water was achieved via a 3-component reaction under neutral conditions. A range of compounds was prepared by using this environmentally friendly method in good yields (82–92%). The catalyst β-CD could be recovered and recycled. The in silico docking studies predicted
A metal‐free visible light promoted three‐component facile synthesis of 4‐oxo‐tetrahydroindoles in ethanol–water
作者:Khursheed Ansari、Mohd Nazeef、Shabir Ali、Malik A. Waseem、Wajaht A. Shah、Saif Ansari、Ibadur R. Siddiqui、Jagdamba Singh
DOI:10.1002/jhet.4202
日期:2021.2
A mild and efficient visible light–mediated one‐potmulticomponent tandem approach to construct 4‐oxo‐tetrahydroindoles in ethanol–water medium at room temperature has been described. The characteristics of reported methodology are the utilization of visible light, an ideal source of energy to generate CC and CN bonds from commercially available substrates namely dimedone, phenacyl bromides, and
Sulfamic acid promoted one-pot multicomponent reaction: a facile synthesis of 4-oxo-tetrahydroindoles under ball milling conditions
作者:Trimurti L. Lambat、Ahmed A. Abdala、Sami Mahmood、Pankaj V. Ledade、Ratiram G. Chaudhary、Subhash Banerjee
DOI:10.1039/c9ra08478a
日期:——
We report an efficient and facileone-potsynthesis of 4-oxo-tetrahydroindoles using sulfamic acid under ball milling conditions. The present protocol for preparation of biologically important 4-oxo-tetrahydroindoles offers several advantages such as mild reaction conditions, improved selectivity and higher isolated yields. Moreover, solvent-free reaction conditions and the use of ball milling make