One‐Pot Construction of Sulfonyl Benzonorcaradienes
作者:Meng‐Yang Chang、Chun‐Yi Lin
DOI:10.1002/adsc.202300012
日期:2023.3.21
We report here on a one-pot stereoselective synthesis of strained sulfonyl benzonorcaradienes, which proceeds through base-mediated tandem annulation of o-bis-sulfonylmethyl arenes with diversified chalcones (α,β-unsaturated carbonyls) via intermolecular desulfonylative cyclopropanation, followed by intramolecular condensation. A plausible mechanism is proposed and discussed. The proposed synthetic
Chalcone is an aromatic ketone that forms the central core for a variety of important biological compounds, which are collectively known as chalcones. The cytotoxic potential of chalcones which consists of C-6-C-3-C-6 units gets enhanced by the incorporation of pyrazole ring as proved by our earlier studies. Thus in the present work, pyrazoles of chalcones with ring A substituted by furan, naphthalene and variety of substituted phenyl rings has been prepared and evaluated for in vitro cytotoxic activity against PC-3, OVCAR, IMR-32, HEP-2 human cancer cell lines.All the synthesized compounds were evaluated for in vitro cytotoxicity against PC-3, OVCAR, IMR-32, HEP-2 human cancer cell lines. Compound 68 was found to be the most potent showing broad spectrum of cytotoxicity against all the cell lines .
One-pot synthesis of multifunctionalized cyclopropanes
作者:Meng-Yang Chang、Yi-Chia Chen、Chieh-Kai Chan
DOI:10.1016/j.tet.2014.02.024
日期:2014.4
A facile one-step synthetic protocol toward multifunctionalized cyclopropanes 4 is developed from substituted chalcones 1 and sulfones 2 in good yields via a [2C+1C] annulation. (c) 2014 Elsevier Ltd. All rights reserved.