Structural requirement for antitumor activity of tropolonederivatives 2-4 was explored. Isochroman derivatives (6-17, 20, and 23) and alpha, alpha-disubstituted compounds 26-30 were synthesized and their antitumor activities were tested. These nontroponoid derivatives were all inactive, implying that a tropolone ring is essential for the activity. Several compounds related to the monotropolone analogue
Eco-friendly Solvent-free Route to Alkyl- and Aryl-Bisphenols Catalyzed by Perchloric Acid-Silica
作者:Deepak Singh、Pradeep T. Deota
DOI:10.1080/00304948.2020.1762459
日期:2020.7.3
Bisphenols, generally formed by condensation of phenols with carbonyl compounds, have found several useful applications. 1–7 The literature records a number of methods for synthesis of bisphenols u...