135522-22-4Relevant academic research and scientific papers
An improved synthesis of natural product inspired chromenopyrrolizines and chromenoindolizines scaffolds: Rapid access to the diverse pyrrolizine analogs of aza-medicarpin and tetracyclic isolamellarin core through a general base and metal free strategy
Khan, Tabrez,Kumar, Virendra,Das, Oindreela
supporting information, p. 1331 - 1340 (2017/08/02)
An improved synthesis for easy access to the natural product inspired chromenopyrrolizine and chromenoindolizine scaffolds is delineated. The strategy involves controlled thermal activation of diverse salicylaldehyde tethered dipolarophiles having the str
N-heterocyclic carbene catalyzed intramolecular hydroacylation of activated alkynes: Synthesis of chromones
Vedachalam, Seenuvasan,Wong, Qian-Ling,Maji, Biswajit,Zeng, Jing,Ma, Jimei,Liu, Xue-Wei
supporting information; experimental part, p. 219 - 225 (2011/04/17)
An organocatalytic intramolecular Stetter-type hydroacylation reaction between an aldehyde and an activated alkyne has been developed. This study induces salicylaldehyde-derived alkyne derivatives to assemble into a series of chromone derivatives using a
NOVEL DIAZASPIROALKANES AND THEIR USE FOR TREATMENT OF CCR8 MEDIATED DISEASES
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Page/Page column 70, (2008/06/13)
The invention provides compounds of general formula (I) wherein A, B, p, w, x, y, and z are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
Synthesis of functionalized 1-benzoxepins by tandem ring-opening/ cyclocondensation of 3-bromoisoxazoles
Kociolek, Martin G.,Straub, Nicholas G.,Schuster, Jolene V.
, p. 259 - 262 (2007/10/03)
A series of functionalized 1-benzoxepins were synthesized by way of a tandem ring-opening/cyclocondensation of aldehyde-containing 3-bromoisoxazoles.
Improved Synthesis of Aryl 1,1-Dimethylpropargyl Ethers
Godfrey, Jollie D.,Mueller, Richard H.,Sedergran, Thomas C.,Soundarajan, Nachimuthu,Colandrea, Vincent J.
, p. 6405 - 6408 (2007/10/02)
An efficient, general, and practical synthesis of aryl 1,1-dimethylpropargyl ethers has been developed.
X=Y-ZH systems as potential 1,3-dipoles. Part 31. Generation of nitrones from oximes, background and scope of the tandem 1,2-prototropy-intramolecular cycloaddition sequence
Grigg,Heaney,Markandu,Surendrakumar,Thornton-Pett,Warnock
, p. 4007 - 4030 (2007/10/02)
1,2-Prototropy in aryl and aliphatic oximes generates a small equilibrium concentration of the corresponding NH nitrone. Examples of a tandem 1,2-prototropy-intramolecular cycloaddition sequence involving aryl and aliphatic oximes are described and steric and electronic factors that favour or disfavour such a sequence are discussed. Deuterium labelling studies with an aliphatic oxime rule out the involvement of an enehydroxylamine in the prototropic generation of the NH nitrone.
