Kittipong Chainok

We report a novel silver-catalyzed and base-mediated double cyclization strategy for the streamlined synthesis of benzo[4,5]imidazo[2,1-b]naphtho[2,3-d]oxazoles from ortho-alkynylarylketones. The transformation proceeds through an initial ketonization step catalyzed by silver trifluoroacetate...

This work demonstrates the preparation of fast-swelling hydrogels based on poly(vinyl alcohol) (PVA) and tamarind xyloglucan (XG), utilizing freeze-drying to achieve an interconnected macroporous structure. Although XG is non-toxic and...

The solvothermal reactions of ZnCl·6HO, benzene-1,3,5-tribenzoic acid (Hbtb), and N-heterocyclic ancillary imidazole (Im) or aminopyrimidine (a mp) ligands led to the creation of two-dimensional (2D) zinc(II) based metal-organic frameworks (MOFs),...

A highly regioselective divergent approach is reported for the synthesis of both indeno[2,1-]pyran-3-one and 1-oxazolonylisobenzofuran derivatives using the Erlenmeyer-Plöchl azlactone (EPA) reaction. This approach involves the synthesis of -(2-acyl-1-ethynyl)benzaldehydes, which...

We synthesized a class of ligands that feature single (L1) and dual amine-bis(triazole) chelates (L2 with a 1,3-phenylene linker and L3 with a 1,5-naphthalene linker). Our findings which were derived...

The title coordination polymer with the 4-methyl--(pyridin-2-yl-methyl-idene)aniline Schiff base ligand (, CHN), [CdCl(CHN)] (), exhibits a columnar structure extending parallel to [100]. The columns are aligned in parallel and are...

Reacting trimesic acid (HTMA, CHO) with CaCl and MCl at 110 °C under hydrothermal conditions gave the isostructural heterobimetallic coordination polymers (CPs) catena-poly[[tetraaquazinc(II)]-μ-5-carboxybenzene-1,3-dicarboxylato-[tetraaquacalcium(II)]-μ-5-carboxybenzene-1,3-dicarboxylato], [CaZn(HTMA)(HO)], 1, and catena-poly[[tetraaquacobalt(II)]-μ-5-carboxybenzene-1,3-dicarboxylato-[tetraaquacalcium(II)]-μ-5-carboxybenzene-1,3-dicarboxylato], [CaCo(HTMA)(HO)], 2. Compounds...

In this work, smart edible coating and films with excellent UV barrier properties were prepared from alginate, whey protein isolate, and curcumin. The primary focus of this investigation centered on...

A new mononuclear copper(II) complex, [Cu(CHO)(HCO)(CHN)], containing mixed - and -donor ligands, 2,2'-di-pyridyl-amine (dpyam) and -hy-droxy-benzoate (-OHbenz), has been obtained from a solvent mixture. The coordination environment of the Cu...

Four highly oxidized pimarane diterpenoids were isolated from Kaempferia takensis rhizomes. Kaemtakols A-C possess a tetracyclic ring with either a fused tetrahydropyran or tetrahydrofuran motif. Kaemtakol D has an unusual...