Results 71 to 80 of about 19,176 (260)
Nature CommunicationsThree-dimensional molecules have drawn tremendous attention due to their pivotal roles in drug discovery as saturated bioisosteres of benzenoids. The direct construction of these scaffolds from simple and readily available one-dimensional building blocks
Zhenyu Gu +4 more
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, 2016 Magnetic isotope effects (MIE) on the diastereoselectivity of the triplet [2+2]-photocycloaddition of benzaldehyde with 2,3-dihydrofuran are described for four substrate combinations.
Samir Bondock (806706) +2 more
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TDAE Strategy for the Synthesis of 2,3-Diaryl N-Tosylaziridines
Molecules, 2013 We report herein an original and rapid synthesis of 2,3-diaryl N-tosylaziridines by TDAE strategy starting from ortho- or para-nitro(dichloromethyl)benzene derivatives and N-tosylimines. A mixture of cis/trans isomers was isolated from 1-(dichloromethyl)-
Thierry Terme +3 more
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Beilstein Journal of Organic Chemistry, 2017 A series of 15 benzene-fused hexahydropyrrolo[1,2-b]isoquinolonic acids with substantial degree of steric encumbrance has been prepared via a novel variant of the Castagnoli–Cushman reaction of homophthalic anhydride (HPA) and various indolenines.
Olga Bakulina +4 more
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SynOpen, 2019 A very efficient synthetic route to (–)-bulgecinine and 5-epibulgecinine from an aldehyde derived from l-glutamic acid is reported. Proline-catalysed asymmetric α-hydroxylation reaction of an aldehyde is the key step in this synthesis, which is used to ...
Vipin Kumar Jain, Mrityunjay Kumar
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INVESTIGATING THE DIASTEREOSELECTIVITY OF PHOTOREDOX ¿-ARYLATION OF AMINES
, 2014 This thesis investigates the diastereoselectivity of a novel visible-light photoredox-catalyzed C-H bond activation reaction that introduces aryl groups at the position adjacent to a tertiary amine nitrogen. To examine the diastereoselectivity of the ¿-
Huang, Emily Bau-Chia
core
Recent developments in the asymmetric Reformatsky-type reaction
Beilstein Journal of Organic Chemistry, 2018 This review collects the most important developments in asymmetric Reformatsky-type reactions published since the beginning of 2013, including both diastereoselective methodologies based on the use of chiral substrates and enantioselective catalytic ...
Hélène Pellissier
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Diastereoselection: Introduction [PDF]
Chemical Reviews, 1999 B W, Gung, B, le Noble
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International Journal of Chemistry, 2011 This study was aimed at determining the effect, if any, that steric factors may have on the diastereoselectivity in the spiroannulation of simple phenols. A series of phenols bearing different size substituents ortho to the phenolic hydroxyl were synthesized and spiroannulated to the corresponding spiroethers in good to excellent yields (76-94 ...
Guy L Plourde, Lyndia M. Susag
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