Reversal of Stereoselectivity in Cycloadditions of Five‐Membered Cyclic Nitrones Derived from Hexoses
Sign Up to like & getrecommendations! Published in 2017 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201601488
Abstract: Two five-membered cyclic nitrones derived from hexoses, a newly synthesized D-allo-configured nitrone and an already known D-talo-configured nitrone, have been examined in 1,3-dipolar cycloaddition reactions with vinyl acetate, allyl benzoate, methyl acrylate, acrylonitrile, and vinylene… read more here.
Keywords: cyclic nitrones; membered cyclic; derived hexoses; five membered ... See more keywords
CO2 capture capacity of five- and six-membered cyclic amidines bearing silatranyl group under dry conditions
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.01.012
Abstract: Abstract CO 2 capture and release behaviors of three amidines bearing silatranyl group in DMSO solution were evaluated under dry conditions containing a very small amount of water. A six-membered cyclic amidine with silatranyl group… read more here.
Keywords: silatranyl group; group; membered cyclic; bearing silatranyl ... See more keywords
Copper-catalyzed borylative cyclization of 1,n-enynyl phosphates leading to five- to eight-membered cyclic 1,4-dienyl boronates
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2017.02.059
Abstract: Abstract We report here a room temperature, efficient, and broadly applicable copper-catalyzed borylative cyclization of 1,n-enynyl (n = 6–9) phosphates for the concise synthesis of structurally diverse 5–8 membered cyclic 1,4-dienyl boronates, which represents the first Cu-catalyzed… read more here.
Keywords: cyclization enynyl; enynyl phosphates; copper catalyzed; membered cyclic ... See more keywords
The Elusive Seven-Membered Cyclic Imino Ether Tetrahydrooxazepine.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.8b10918
Abstract: Cyclic imino ether heterocycles are used as ligands in transition metal catalysis, in various drugs and as reactive monomers in living cationic ring-opening polymerization (CROP). While five- and six-membered cyclic imino ethers, i.e. 2-oxazolines and… read more here.
Keywords: cyclic imino; imino; membered cyclic; imino ether ... See more keywords
Synthesis of a 12-membered cyclic siloxane possessing alkoxysilyl groups as a nanobuilding block and its use for preparation of gas permeable membranes
Sign Up to like & getrecommendations! Published in 2017 at "RSC Advances"
DOI: 10.1039/c7ra09380b
Abstract: A 12-membered cyclic siloxane possessing alkoxysilyl groups was synthesized as a nanobuilding block for siloxane-based materials by the alkoxysilylation of organometallasiloxane containing a 12-membered ring with Si–Me and Si–O− groups as the side groups. The… read more here.
Keywords: possessing alkoxysilyl; alkoxysilyl groups; membered cyclic; cyclic siloxane ... See more keywords
Synthesis of five-membered cyclic nitrones based on the Lewis acid-catalysed [3+2]-annulation reaction of donor-acceptor cyclopropanes with 1,4,2-dioxazoles.
Sign Up to like & getrecommendations! Published in 2018 at "Chemical communications"
DOI: 10.1039/c8cc04656e
Abstract: A novel synthesis of five-membered cyclic nitrones has been developed based on the Lewis acid-catalysed [3+2]-annulation reaction of D-A cyclopropanes with 1,4,2-dioxazoles. Broad substrate scope and generally good yield make this reaction useful in the… read more here.
Keywords: cyclic nitrones; membered cyclic; synthesis five; reaction ... See more keywords
Synthesis of degradable and chemically recyclable polymers using 4,4-disubstituted five-membered cyclic ketene hemiacetal ester (CKHE) monomers
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Science"
DOI: 10.1039/d1sc03560f
Abstract: Novel degradable and chemically recyclable polymers were synthesized using five-membered cyclic ketene hemiacetal ester (CKHE) monomers. The studied monomers were 4,4-dimethyl-2-methylene-1,3-dioxolan-5-one (DMDL) and 5-methyl-2-methylene-5-phenyl-1,3-dioxolan-4-one (PhDL). The two monomers were synthesized in high yields (80–90%), which… read more here.
Keywords: recyclable polymers; membered cyclic; chemically recyclable; degradable chemically ... See more keywords
Utilization of Borane-Catalyzed Hydrosilylation as a Dearomatizing Tool: Six-Membered Cyclic Amidine Synthesis from Isoquinolines and Pyridines
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DOI: 10.1055/s-0040-1707323
Abstract: In this study, a convenient strategy to synthesize six-membered cyclic amidines from isoquinolines and pyridines has been developed. Borane-catalyzed hydrosilylation of each N-heteroarene was utilized as a dearomatizing tool. Substrate scope is broad with respect… read more here.
Keywords: catalyzed hydrosilylation; six membered; isoquinolines pyridines; membered cyclic ... See more keywords
Crystal structures of eight- and ten-membered cyclic bisanisylphosphonothioyl disulfanes and comparison with their P-ferrocenyl analogues
Sign Up to like & getrecommendations! Published in 2018 at "Acta Crystallographica Section E: Crystallographic Communications"
DOI: 10.1107/s2056989018001068
Abstract: Two new crystal structures of eight- and ten-membered cyclic bisanisylphosphonothioyl disulfanes have been determined and these are compared to the structures of their ferrocenyl analogues. read more here.
Keywords: cyclic bisanisylphosphonothioyl; ten membered; membered cyclic; crystal structures ... See more keywords
Organocatalyzed atroposelective dynamic kinetic resolutions via transient seven-membered cyclic hemiacetals
Sign Up to like & getrecommendations! Published in 2025 at "Science Advances"
DOI: 10.1126/sciadv.adx8255
Abstract: Catalytic atroposelective dynamic kinetic resolution via the formation of transient bridged biaryl intermediates represents an expedient route for the synthesis of axially chiral biaryls. Progress in this field has been limited to the reactions promoted… read more here.
Keywords: seven membered; atroposelective dynamic; dynamic kinetic; membered cyclic ... See more keywords
A Short Step Conversion of Alkynyl Propargyl Sulfones into Six-Membered Cyclic β-Ketosulfones via an Amine-Induced Novel Ring Closure
Sign Up to like & getrecommendations! Published in 2018 at "Natural Product Communications"
DOI: 10.1177/1934578x1801300519
Abstract: Alkynyl propargyl sulfones underwent secondary amine-induced cyclization to give six-membered cyclic enaminosulfones, and the products were subjected to acidic hydrolysis to afford the corresponding cyclic β-ketosulfones in high yields. read more here.
Keywords: propargyl sulfones; six membered; alkynyl propargyl; cyclic ketosulfones ... See more keywords