Functionalized 4H‐chromenes represent one class of the most important structural scaffolds
in both synthetic and medicinal chemistry. They often appear in an arrange of biological …

Highly efficient catalytic one‐pot construction of 3‐acetyl‐4H‐chromene derivatives via a
tandem conjugate addition and cyclocondensation using p‐TSA catalyst was achieved …

Fused coumarins, because of their remarkable biological and therapeutic properties,
particularly pyranocoumarins, have caught the interest of synthetic organic chemists, leading …

This paper presents a new strategy for the construction of the chiral 4 H-chromene skeleton.
A series of chiral 2-trifluoromethyl-4-(indol-3-yl)-4 H-chromenes were synthesized in …

In this study, one bioactive coumarin analog was obtained as a result of biotransformation of
three inactive coumarin derivatives by free cells of Candida albicans. The bioactive analog …

Substituted hydroxy-benzofurans are easily accessible by treatment of resorcinols and 1, 2-
diaza-1, 3-dienes (DDs) under acidic conditions. The reaction happens through an …

The most interesting chemistry published in 2018 on the synthesis of O-and S-6-membered
heterocycles is reviewed. This personal overview is focused on the developments made on …

Aim: The present study involves to design, synthesis and evaluate the anticancer activity of
4H-chromene derivatives (PKB 1-10) on human breast cancer MCF-7 cell line. Materials and …

Summary This Chapter Contains Sections titled: Reviews Electrophilic Additions
Halogenation and Related Reactions (i) Bromine (ii) Chlorine (ii) Iodine (iv) Fluorine …

Nitrogen heterocycles are among the most significant components of natural and
pharmaceutical products. Indeed an analysis of database of US FDA approved drugs …