Polyols and polyacrylates have a wide range of applications in polymer synthesis as monomers, initiators, or building blocks variety polymerization reaction types. With an ever-growing need to reduce the global dependency on fossil fuels, finding bio-based/renewable sources for these compounds is now critical. Herein, alkene moieties common, abundant terpenes are functionalized via oxidation ex...

Mixtures of plastic particles different types were analysed by Py-GC-MS in order to investigate the effect polymer interactions on composition pyrolysates. Pyrolysis products associated secondary reactions observed when poly(ethylene terephthalate) (PET) pyrolysed presence poly(vinylchloride) (PVC) and polyamides PA6 (polycaproamide) PA66 (poly(hexamethylene adipamide)). Co-pyrolysis PET PVC pr...

caffeic acid phenethyl ester(cape) suppresses the growth of transformed cells such as human breast cancer cells, hepatocarcinoma , myeloid leukemia, colorectal cancer cells, fibrosarcoma, glioma and melanoma. a group of heterocyclic esters of caffeic acid was synthesized using mitsunobu reaction and the esters were subjected to further structural modification by electrooxidation of the catechol...

The development of methods for the facile conjugation and radiolabeling of poly(amido)amine (PAMAM) dendrimers would be of great benefit in evaluating biomedical applications of these intriguing molecularly defined polymers. Two anionic N-hydroxysuccinimide (NHS) esters (7 and 10) were developed and radiolabeled with fluorine-18 using Cu(I)-catalyzed click reactions. The radiolabeling of a prim...

Trypsin catalyses the hydrolysis of suitable derivatives of basic amino acids including peptides, amides and esters. Esters are the most sensitive substrates, and it was decided to use them in the present study, which had as one of its aims the elucidation of the relationship between the length of the side chain and susceptibility to hydrolysis by trypsin. Previous investigations had shown that...

Flavonoids have shown promise as natural plant-based antioxidants for protecting lipids from oxidation. It was hypothesized that their applications in lipophilic food systems can be further enhanced by esterification of flavonoids with fatty acids. Quercetin-3-O-glucoside (Q3G) was esterified individually with six selected long chain fatty acids: stearic acid (STA), oleic acid (OLA), linoleic a...

A novel homochiral phosphine ligand, (3R,9aS)[2-aryl-3-(2-diphenylphosphino)phenyl]tetrahydro-1H-imidazo[1,5-a]indole-1-one, was designed, prepared, and anchored onto an amphiphilic polystyrene-poly(ethylene glycol) copolymer (PS-PEG) resin. Catalytic asymmetric substitution of a racemic mixture of cycloalkenyl esters with carbon, nitrogen, and oxygen nucleophiles was achieved in water as the s...

Iridium-catalyzed borylation has been applied to various substituted thiophenes to synthesize poly-functionalized thiophenes in good to excellent yields. Apart from common functionalities compatible with iridium-catalyzed borylations, additional functional group tolerance to acyl (COMe), and trimethylsilyl (TMS) groups was also observed. High regioselectivities were observed in borylation of 3-...