Results 21 to 30 of about 349,221 (347)
, 2022 Der Urnäscher Geiger Ueli Alder hat die Appenzeller Musik wesentlich geprägt.
Furger, Dominik +6 more
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Leśne Prace Badawcze, 2020 Black Alder Alnus glutinosa (L.) Gaertn. is an important tree commonly growing in Poland. Alders are actinorhizal plants that play an important ecological role in riparian ecosystems through atmospheric nitrogen fixation, filtration and purification of ...
Malewski Tadeusz +3 more
doaj +1 more source
Journal of the American Chemical Society, 2019 The pericyclases are a growing superfamily of enzymes that catalyze pericyclic reactions. We report a pericyclase IccD catalyzing an inverse-electron demand Diels-Alder (IEDDA) reaction with a rate acceleration of 3 × 105-fold in the biosynthesis of ...
Zhuan Zhang +6 more
semanticscholar +1 more source
Intramolecular Imino Diels-Alder Reaction: Progress toward the Synthesis of Uncialamycin [PDF]
, 2009 We herein described an intramolecular imino Diels-Alder reaction promoted with BF3.OEt2/DDQ affording substituted quinolines. Using this procedure, we prepared the chiral quitioline moiety of the uncialamycin, a new enediyne natural ...
Desrat, S, van de Weghe, P
core +3 more sources
One-pot multi-reaction processes: synthesis of natural products and drug-like scaffolds [PDF]
, 2014 One-pot multi-reaction processes involving Overman rearrangements, metathesis cyclizations, and Diels–Alder reactions have been developed for the rapid and efficient synthesis of amino-substituted carbocyclic and heterocyclic compounds.
Calder, Ewen D.D. +2 more
core +1 more source
Ecosphere, 2021 As tall shrubs increase in extent and abundance in response to a changing climate, they have the potential to substantially alter Arctic and boreal ecosystem nutrient cycling and carbon (C) balance. Siberian alder (Alnus viridis ssp.
Calvin B. Heslop +3 more
doaj +1 more source
Inter- and intramolecular Diels-Alder/retro-Diels-Alder reactions of 4-silylated oxazoles [PDF]
, 2002 4-Silylated oxazoles have been shown to undergo inter- and intramolecular Diels-Alder/retro-Diels-Alder reactions with electron-poor alkynes to generate polysubstituted furans.
Ducept, P.C., Marsden, S.P.
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Journal of the American Chemical Society, 2019 Diels-Alder reactions are among the most powerful synthetic trans-formations to construct complex natural products. Despite that increasing of enzymatic intramolecular Diels-Alder reactions have been discovered, natural intermolecular Diels-Alderases are
Qibin Chen +11 more
semanticscholar +1 more source
Redox-mediated reactions of vinylferrocene: Toward redox auxiliaries [PDF]
, 2016 Chemical redox reactions have been exploited to transform unreactive vinylferrocene into a powerful dienophile for the Diels–Alder reaction and reactive substrate for thiol addition reactions upon conversion to its ferrocenium state.
Cooke, Graeme +5 more
core +1 more source
Treating vitamin D deficiency in children with type I diabetes could improve their glycaemic control
BMC Research Notes, 2017 Background and aims The relationship between vitamin D deficiency and type I DM is an ongoing area of interest. The study aims to identify the prevalence of vitamin D deficiency in children and adolescents with T1DM and to assess the impact of treatment ...
Dinesh Giri +6 more
doaj +1 more source