Results 31 to 40 of about 2,874,801 (150)
ELECTROPHILIC CYCLIZATION OF DITERPENOIDS [PDF]
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2006 A review of diterpenoid cyclization initiated by electrophilic reagents is provided. Conventional protonic and Lewis acids are examined along with superacids as initiators of cyclization cascade.
Veaceslav Kulciţki +3 more
doaj
Nickel-catalyzed switchable arylative/endo-cyclization of 1,6-enynes
Nature CommunicationsCarbo- and heterocycles are frequently used as crucial scaffolds in natural products, fine chemicals, and biologically and pharmaceutically active compounds.
Wenfeng Liu +4 more
doaj +1 more source
Oxidative radical ring-opening/cyclization of cyclopropane derivatives
Beilstein Journal of Organic Chemistry, 2019 The ring-opening/cyclization of cyclopropane derivatives has drawn great attention in the past several decades. In this review, recent efforts in the development of oxidative radical ring-opening/cyclization of cyclopropane derivatives, including ...
Yu Liu +7 more
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A strategy for sequence control in vinyl polymers via iterative controlled radical cyclization
Nature Communications, 2016 There is a growing interest in sequence-controlled polymers toward advanced functional materials. However, control of side-chain order for vinyl polymers has been lacking feasibility in the field of polymer synthesis because of the inherent feature of ...
Yusuke Hibi, M. Ouchi, M. Sawamoto
semanticscholar +1 more source
Molecules, 2011 all-endo-3-amino-5-hydroxybicyclo[2.2.2]octane-2-carboxylic acid (13) and all-endo-5-amino-6-(hydroxymethyl)bicyclo[2.2.2]octan-2-ol (10) were prepared via dihydro-1,3-oxazine or g-lactone intermediates by the stereoselective functionalization of an N ...
Márta Palkó +2 more
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Nature CommunicationsTransition metal-catalyzed asymmetric cyclization of 1,6-enynes is a powerful tool for the construction of chiral nitrogen-containing heterocycles.
Wenfeng Liu +4 more
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Metal-Free Synthesis of N-Heterocycles via Intramolecular Electrochemical C-H Aminations
Frontiers in Chemistry, 2022 N-heterocycles are key structural units in many drugs, biologically interesting molecules and functional materials. To avoid the residues of metal catalysts, the construction of N-heterocycles under metal-free conditions has attracted much research ...
Huiqiao Wang +4 more
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Efficient backbone cyclization of linear peptides by a recombinant asparaginyl endopeptidase
Nature Communications, 2015 Cyclotides are diverse plant backbone cyclized peptides that have attracted interest as pharmaceutical scaffolds, but fundamentals of their biosynthetic origin remain elusive.
K. Harris +10 more
semanticscholar +1 more source
Straightforward synthesis of pyrimido[4,5-e][1,4]diazepines via 6-aminopyrimidin-5-carbaldehydes
Arabian Journal of Chemistry, 2019 A high-throughput method to obtain several pyrimido[4,5-e][1,4]diazepines is described by a two-step acylation/cyclization sequence from key intermediates 6-amino-5-(amino)methylpyrimidines, which were prepared from the precursor 6-aminopyrimidin-5 ...
Jose M. de la Torre +2 more
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SpyTag/SpyCatcher Cyclization Enhances the Thermostability of Firefly Luciferase
PLoS ONE, 2016 SpyTag can spontaneously form a covalent isopeptide bond with its protein partner SpyCatcher. Firefly luciferase from Photinus pyralis was cyclized in vivo by fusing SpyCatcher at the N terminus and SpyTag at the C terminus.
M. Si, Qing-tao Xu, Ling Jiang, He Huang
semanticscholar +1 more source