Browsing Externally hosted open access publications with University of Galway authors (1) by Subject "x=y-zh systems"
Now showing items 1-5 of 5
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Site selectivity in the addition of ketoximes to activated allenes and alkynes; n- versus o-alkylation
(Royal Society of Chemistry (RSC), 1999-01-01)Reaction of ketoximes with methyl propiolate afforded geometrical isomers of the methyl 3-(hydroxyimino)propanoates 4 and of the O-vinyl oximes 5 as well as the 2-isoxazoline 6. With dimethyl penta-2,3-diendioate 8c reaction ... -
The influence of oxime stereochemistry in the generation of nitrones from ω-alkenyloximes by cyclization or 1,2-prototropy
(Royal Society of Chemistry (RSC), 1998-01-01)Thermally induced cyclization of the anti-alkenyl oximes E-7a,b and E-17a,b affords cyclic alpha-alkoxycarbonylnitrones 8 and the 6,7-bicyclic nitrones 18, respectively, The syn-oximes Z-7b and Z-17b react via an alternate ... -
The synthesis of 1,2,7,11b-tetrahydroisoxazolo[2,3-d][1,4]benzodiazepin-6(5h)-ones and 1,3,3a,9b-tetrahydroisoxazolo[4,3-c]quinolin-4(5h)-ones
(Elsevier BV, 1995-10-01)The reaction of various ethyl 3-[[2-(1-hydroxyiminoalkyl)phenyl]carbamoyl]acrylates (2) with electron deficient olefins proceeds via a sequential dipole formation, dipolar cycloaddition sequence to furnish the tetrahydro ... -
Α-oximono-esters as precursors to heterocycles – generation of oxazinone n-oxides and cycloaddition to alkene dipolarophiles
(Royal Society of Chemistry (RSC), 2003-01-01)Preparation of a series of terminally and internally substituted delta-alkenyl and delta-alkynyl esters 6,7 and 9, potential precursors to oxazin-2-one nitrones, has been attempted. Condensation between pyruvic or benzoylformic ...