Results 31 to 40 of about 2,492,262 (305)
Stability conditions and Kleinian singularities
, 2020 We describe the spaces of stability conditions on certain triangulated categories associated to Dynkin diagrams. These categories can be defined either algebraically via module categories of preprojective algebras, or geometrically via coherent sheaves ...
Bridgeland, Tom
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Amino Amide Organocatalysts for Asymmetric Michael Addition of β-Keto Esters with β-Nitroolefins [PDF]
, 2019 Asymmetric Michael addition of β-keto esters with trans-β-nitroolefins using chiral amino amide organocatalyst was tried and afforded synthetically useful chiral Michael adducts in both excellent chemical yields (up to 99%) and stereoselectivities (up to
CHENNAPURAM Madhu +8 more
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Explanation = Unification? A New Criticism of Friedman’s Theory and a Reply to an Old One [PDF]
, 2017 According to Michael Friedman’s theory of explanation, a law X explains laws Y1, Y2, …, Yn precisely when X unifies the Y’s, where unification is understood in terms of reducing the number of independently acceptable laws.
Elliott, Sober, William, Roche
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Beilstein Journal of Organic Chemistry, 2013 Regioselective conjugate 1,4-trifluoromethylation of α,β-unsaturated ketones by the use of shelf-stable electrophilic trifluoromethylating reagents, S-(trifluoromethyl)diphenylsulfonium salts and copper under mild conditions is described. A wide range of
Satoshi Okusu +3 more
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Aza-Michael mono-addition using acidic alumina under solventless conditions [PDF]
, 2016 Aza-Michael reactions between primary aliphatic and aromatic amines and various Michael acceptors have been performed under environmentally-friendly solventless conditions using acidic alumina as a heterogeneous catalyst to selectively obtain the ...
Abdilla, Roderick, Bosica, Giovanna
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Recent Advances in Asymmetric Organocatalyzed Conjugate Additions to Nitroalkenes
Molecules, 2017 The asymmetric conjugate addition of carbon and heteroatom nucleophiles to nitroalkenes is a very interesting tool for the construction of highly functionalized synthetic building blocks.
Diego A. Alonso +6 more
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Biosensors, 2022 Benzimidazole-based compound 2-(p-tolyl)-1H-benzo[d]imidazole (3) and its derivative probe A-B have been synthesized for the highly selective detection and quantification of Cys in human serum.
In-ho Song +3 more
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A stereoselective synthesis of (R)-(-)-rolipram from L-glutamic acid [PDF]
, 1997 A stereoselective synthesis of (R)-(-)-rolipram from L-glutamic acid is described. The key step is a stereoselective Michael addition of an arylcuprate to a modified pyroglutamic derivative which acts as the template to induce the stereoselectivity ...
Díaz Martínez, Adolfo +4 more
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6-exo-trig Michael addition-lactonizations for catalytic enantioselective chromenone synthesis [PDF]
, 2017 The authors thank the EPSRC Centre for Doctoral Training in Critical Resource Catalysis (CRITICAT, grant code EP/L016419/1, RMNP) for funding.The European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013) ERC Grant ...
Cordes, David Bradford +3 more
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Molecules, 2018 Primary amine-salicylamides derived from chiral trans-cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of α,α-disubstituted aldehydes to arylated and heteroarylated nitroalkenes.
José R. Martínez-Guillén +4 more
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