Expedient synthesis of xanthones and multi-functionalized chromones from 1,1-diacyl cyclopropanes
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron"
DOI: 10.1016/j.tet.2018.04.003
Abstract: Abstract We report the rapid synthesis of various cycloheptane-fused chromones and an oxepine fused flavone in 5 steps from the corresponding 2-hydroxy acetophenone. Furthermore, we describe the synthesis of xanthones, in moderate to good yield,… read more here.
Keywords: synthesis xanthones; expedient synthesis; xanthones multi; functionalized chromones ... See more keywords
Expedient synthesis of a new class of organic building blocks: N-allenylpyrrole-2-carbaldehydes
Sign Up to like & getrecommendations! Published in 2020 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2020.152666
Abstract: Abstract Hitherto unknown N-allenylpyrrole-2-carbaldehydes were synthesized via the formylation of readily available N-allenylpyrroles under the action of the mild formylating complex DMF/(COCl)2. The reaction selectively proceeds in the case of pyrroles with electron-withdrawing substituents to… read more here.
Keywords: class organic; new class; synthesis new; allenylpyrrole carbaldehydes ... See more keywords
Expedient Synthesis of Alphitolic Acid and Its Naturally Occurring 2- O-Ester Derivatives.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of natural products"
DOI: 10.1021/acs.jnatprod.8b00986
Abstract: The expedient synthesis of alphitolic acid (1) as well as its natural C-3-epimer and 2- O-ester derivatives was accomplished in a few steps from the readily commercially available betulin (9). A Rubottom oxidation delivered an… read more here.
Keywords: expedient synthesis; ester derivatives; synthesis alphitolic; alphitolic acid ... See more keywords
Expedient synthesis of eumelanin-inspired 5,6-dihydroxyindole-2-carboxylate ethyl ester derivatives
Sign Up to like & getrecommendations! Published in 2018 at "RSC Advances"
DOI: 10.1039/c8ra06148c
Abstract: Dihydroxyindoles such as 5,6-dihydroxyindole-2-carboxylic acid (DHICA) are the main monomer units of eumelanin, the black to brown pigment in humans, and have emerging biological roles beyond melanin. Elaboration of commercially available 5,6-dimethoxy-2-carboxylate ethyl ester provides… read more here.
Keywords: ethyl ester; expedient synthesis; carboxylate ethyl;
Expedient Synthesis and Ring-Opening Metathesis Polymerization of Pyridinonorbornenes.
Sign Up to like & getrecommendations! Published in 2022 at "Polymer chemistry"
DOI: 10.1039/d2py00857b
Abstract: Pyridine-containing polymers are promising materials for a variety of applications from the capture of contaminants to the self-assembly of block copolymers. However, the innate Lewis basicity of the pyridine motif often hampers living polymerization catalyzed… read more here.
Keywords: expedient synthesis; metathesis polymerization; opening metathesis; ring opening ... See more keywords
Facile and expedient synthesis and anti-proliferative activity of diversely pyrrolones bearing 1,3-diphenylpyrazole moiety
Sign Up to like & getrecommendations! Published in 2019 at "Synthetic Communications"
DOI: 10.1080/00397911.2019.1691737
Abstract: Abstract A series of some pyrrolone derivatives were synthesized from the acid hydrazide, derived from a pyrazolyl-2(3H)-furanone, through treating with some carbonyl reagents such as 1-phenyl-3-(thiophen-2-yl)-1H-pyrazole-4-carbaldehyde, formic acid, lauroyl chloride, succinoyl chloride, propionic anhydride, as… read more here.
Keywords: facile expedient; anti proliferative; expedient synthesis; synthesis anti ... See more keywords