Synthesis and characterization of novel biological tetracoumarin derivatives bearing ether moieties
作者:Soheila Asadpour Behzadi、Enayatollah Sheikhhosseini、Sayed Ali Ahmadi、Dadkhoda Ghazanfari、Mohammadreza Akhgar
DOI:10.1515/hc-2020-0009
日期:2020.4.3
Abstract A series of novel tetracoumarin derivatives (3a-f) were prepared using the reaction of ether functionalized dibenzaldehyde with 4-hydroxycoumarin in the presence of sodium acetate. The structure of compounds was validated by IR, NMR, and CHN analyzes. Antimicrobial (antibacterial and antifungal) activity was studied on the basis of the minimum bactericidal concentration, minimum inhibitory
One‐pot synthesis of novel polysubstituted furopyran derivatives via pseudo seven‐component reaction (6 + 1) of isocyanides with bisarylidene Meldrum's acid containing ether groups
In the present study, a group of polysubstituted furopyran derivatives possessing ether spacer groups were synthesized under good‐to‐exceptional yields via cycloaddition of bisarylidene Meldrum's acid derivatives (1 mmol) with isocyanides (6 mmol) within dichloromethane (CH2Cl2) for 3 to6 hours at room temperature with no assistance from any type of catalysts. The structure of the products was then