Multicomponent Reactions of Arylglyoxal, 4-Hydroxycoumarin, and Cyclic 1,3-C,N-Binucleophiles: Binucleophile Directed Synthesis of Fused Five and Six Membered N-Heterocycles
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DOI: 10.1002/ejoc.201700115
Abstract: The multicomponent reaction (MCR) of arylglyoxal, 4-hydroxycoumarin, and various cyclic 1,3-C,N-binucleophiles in acetic acid under microwave conditions provides fused five- or six- membered N-heterocycles depending on the ring size of the binucleophiles. 1,3-C,N-binucleophiles, such as… read more here.
Keywords: six membered; cyclic binucleophiles; membered heterocycles; fused five ... See more keywords
Radical Borylative Cyclization of 1,6-Dienes: Synthesis of Boron-Substituted Six-Membered Heterocycles and Carbocycles.
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DOI: 10.1021/acs.orglett.8b00694
Abstract: A radical borylative cyclization reaction of 1,6-dienes was developed to assemble boron-handled six-membered heterocycles and carbocycles. This reaction was initiated by the chemo- and regio-controlled addition of an N-heterocyclic carbene-boryl radical to one of the… read more here.
Keywords: six membered; cyclization; radical borylative; membered heterocycles ... See more keywords
A newly designed heterodiene and its application to construct six-membered heterocycles containing an N-O bond.
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DOI: 10.1039/c9cc05694g
Abstract: A new type of zwitterionic nitrosoalkene generated in situ from dehydrohalogenation of α-halo-N-alkylhydroxamic acids was designed. [4+2] cycloadditions of this heterodiene to olefins provide a facile route to construct six-membered heterocycles containing an N-O bond… read more here.
Keywords: six membered; membered heterocycles; construct six; heterocycles containing ... See more keywords
Nanocatalysts: applications for the synthesis of N-containing five-membered heterocycles
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DOI: 10.1039/d2ra03122a
Abstract: Using transition metals as nanocatalysts has opened up a vast new area in heterocyclic chemistry in the modern day. Heterocyclic moieties are significant scaffolds that have both pharmacological and industrial applications. Various scientific groups have… read more here.
Keywords: five membered; nanocatalysts applications; synthesis containing; applications synthesis ... See more keywords
Calculations of molecular multipole electric moments of a series of exo-insaturated four-membered heterocycles, Y = CCH2CH2X
Sign Up to like & getrecommendations! Published in 2017 at "Molecular Physics"
DOI: 10.1080/00268976.2017.1333646
Abstract: ABSTRACT The influence of ring puckering angle on the multipole moments of sixteen four-membered heterocycles (1-16) was theoretically estimated using MP2 and different DFTs in combination with the 6-31+G(d,p) basis set. To obtain an accurate… read more here.
Keywords: basis set; multipole moments; basis; membered heterocycles ... See more keywords
Perspectives of ionic liquids applications for the synthesis of five- and six-membered O,N-heterocycles
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DOI: 10.1080/00397911.2017.1406521
Abstract: ABSTRACT A considerable attention has been paid on the use of ionic liquids in chemical research. Modern synthetic chemistry is benefited as ionic liquid methodology provided an environmentally benign approach. In comparison to traditional processes… read more here.
Keywords: perspectives ionic; six membered; synthesis five; membered heterocycles ... See more keywords
Synthesis of seven and higher-membered heterocycles using ruthenium catalysts
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DOI: 10.1080/00397911.2018.1555711
Abstract: Abstract A wide variety of biological activities are possessed by nitrogen, oxygen, and sulfur containing heterocycles and many methods are explored for the preparation of these heterocyclic compounds. Metal catalysts are used in organic reactions… read more here.
Keywords: ruthenium; seven higher; membered heterocycles; higher membered ... See more keywords
Seven-membered N-heterocycles: metal and nonmetal assisted synthesis
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DOI: 10.1080/00397911.2019.1574351
Abstract: Abstract The investigation of facial synthetic methods for chemical synthesis is a growing area of interest due to increasing environmental issues. The use of catalysts in organic reactions has gained extensive interest. Metal and nonmetal… read more here.
Keywords: heterocycles metal; metal nonmetal; membered heterocycles; seven membered ... See more keywords
Synthesis of five-membered N-heterocycles using Rh based metal catalysts
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DOI: 10.1080/00397911.2019.1689271
Abstract: Abstract One of the highly emerging and an important aspect of organic chemistry is the metal catalyzed synthesis of heterocycles. The methodologies used earlier for their synthesis were less approachable to the organic chemist because… read more here.
Keywords: using based; heterocycles using; metal; synthesis five ... See more keywords
Ag-mediated synthesis of six-membered N-heterocycles
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DOI: 10.1080/00397911.2019.1703196
Abstract: Abstract One of the highly emerging and an important aspect of organic chemistry is the metal catalyzed synthesis of heterocycles. The methods used earlier for the synthesis of heterocycles were significant in the organic synthesis… read more here.
Keywords: six membered; chemistry; mediated synthesis; synthesis six ... See more keywords
Synthesis of higher-membered heterocycles
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DOI: 10.1080/00397911.2023.2172350
Abstract: Abstract Heterocycles constitute a very important class of compounds in organic chemistry. The heterocyclic frameworks represent the main structural subunits of various natural products and biologically active compounds. The formation of higher-membered heterocyclic compounds has… read more here.
Keywords: higher membered; synthesis higher; chemistry; synthesis ... See more keywords