The base-catalyzedcondensation of α,β-unsaturated carbonyl compounds with 2-hydroxybenzaldehydes yielding tetrahydroxanthones and dihydrobenzopyrans has been investigated. A novel access to highly functionalized dihydrobenzopyrans via a mild generation of the dienol of senecialdehyde and subsequent conjugated aldol reaction has been reported.
Thieme Chemistry Journal Awardees- Where are They Now? An Asymmetric Organocatalytic Sequence towards 4a-Methyl Tetrahydroxanthones: Formal Synthesis of 4-Dehydroxydiversonol
Tricyclic systems generated by an asymmetric vinylogous aldol-oxa-Michael reaction of salicylaldehydes with senecialdehyde were further elaborated using a strategy developed by Tietze et al. to generate 4a-methyl tetrahydroxanthones.
Green chemistry appended synthesis, metabolic stability and pharmacokinetic assessment of medicinally important chromene dihydropyrimidinones
作者:Ashutosh K. Dash、Debaraj Mukherjee、Abhijeet Dhulap、Saqlain Haider、Deepak Kumar
DOI:10.1016/j.bmcl.2019.126750
日期:2019.12
A green chemistry approach has been developed for the synthesis of chromene dihydropyrimidinone (CDHPM) using recyclable Fe/Al pillared clay catalyst. Pharmacokinetic parameters like aqueous solubility, lipophilicity, P-glycoprotein (P-gp) ATPase activity, permeability, plasma protein binding, red blood cell (RBC) partitioning, metabolic stability in liver microsomes and in silico computations have