53668-52-3Relevant academic research and scientific papers
Ruthenium-catalyzed three-component coupling via hydrative conjugate addition of alkynes to alkenes: One-pot synthesis of 1,4-dicarbonyl compounds
Chen, Yiyun,Park, Sung Hwan,Lee, Chung Whan,Lee, Chulbom
supporting information; experimental part, p. 2000 - 2004 (2011/11/07)
A catalytic three-way rendezvous: Terminal alkynes undergo metal vinylidene formation, anti-Markovnikov hydration to give a metal acyl complex, and conjugate addition to produce synthetically useful 1,4-dicarbonyl compounds under ruthenium catalysis. This one-pot three-component coupling reaction is a useful platform for further exploration in alkyne functionalization.
Asymmetric synthesis of spiro 2-pyrrolidin-5-ones, 2-piperidin-6-ones and 1-isoindolin-3-ones. Part 1: N-acyliminium ion cyclisations with an internal arene nucleophile
Bahajaj, Abood A.,Moore, Madeleine H.,Vernon, John M.
, p. 1235 - 1246 (2007/10/03)
A series of chiral non-racemic 5,5- and 5,6-bicyclic lactams is prepared from (R)-phenylglycinol. These are isomerised on treatment with aluminium trichloride in 1,2-dichloroethane to give spiro lactams in high yield and >3:1 diastereoselectivity. From four structures determined by X-ray crystallography, it follows that spiro indenes are formed preferentially with retention of configuration at the spiro carbon atom and spiro naphthalenes with inversion.
First Michael addition reaction of α-substituted N-diphenylmethyleneglycinate with ethyl propiolate. Synthesis of α-substituted (E)-3,4-dehydroglutamic acids
Rubio, Almudena,Ezquerra, Jesus
, p. 5823 - 5826 (2007/10/02)
(E)-α-substituted 3,4-dehydro glutamic acids 4, were prepared from ethyl N-diphenylmethyleneglycinate 5 by alkylation with a suitable alkyl halide followed by a Michael type addition reaction with ethyl propiolate, giving rise to a mixture of E/Z adducts 7/8. Sequential hydrolysis of the substituted glycine synthons 7/8 afforded the titled compounds 4 as single diastereomers.
Chemoselective conversion of conjugated nitroalkenes into ketones by sodium borohydride-hydrogen peroxide: A new synthesis of 4-oxoalkanoic acids, dihydrojasmone and (±)exo-brevicomin
Ballini,Bosica
, p. 723 - 726 (2007/10/02)
A new, simple, cheap, and practical procedure for the direct transformation of α,β-unsaturated nitroalkenes into ketones has been realized by the NaBH4/H2O2 system. By this method, other functional groups such as C-C double bonds, ketals or aromatic nitro groups were preserved. Application of this methodology to the preparation of 4-oxoalkanoic acids, dihydrojasmone, and (±)-exobrevicomin is also reported.
Novel prolinal derivatives
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, (2008/06/13)
A novel prolinal derivative of general formula: STR1 wherein A represents alkylene group of from 1 to 4 carbon atom(s) or saturated hydrocarbon ring of from 3 to 7 carbon atoms, n represents a number 2, 3 or 4, D represents carbocyclic or heterocyclic rin
