Ring enlargement and ring contraction induced by DAST
ARKIVOC, 2010 Haidy Ferret +4 more
doaj +3 more sources
Ring Contraction of Gummiferolic Acid, a Diterpene Isolated from , Leading to Atisagibberellins
Natural Product Communications, 2008 Gummiferolic acid ( 1 ) is an atisenoic acid derivative that shows phytohormonal activity. In order to increase this activity the natural product, after careful functionalisation, was subjected to several reaction conditions to provoke the contraction of
Josefa Anaya +4 more
doaj +2 more sources
Photomediated ring contraction of saturated heterocycles. [PDF]
Science, 2021 Jurczyk J +6 more
europepmc +2 more sources
Synthesis of Pyrroles via Consecutive 6π-Electrocyclization/Ring-Contraction of Sulfilimines. [PDF]
J Am Chem Soc, 2021 Haut FL +8 more
europepmc +2 more sources
Transformation of the cyclohexane ring to the cyclopentane fragment of biologically active compounds [PDF]
Beilstein Journal of Organic ChemistryThe review is devoted to strategies for contraction of six-membered cycles in the synthesis of functionalized cyclopentane/enones, which are biologically active compounds.
Natalya Akhmetdinova +2 more
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Melifoliox B, a novel phloroglucin derivative isolated from Melicope barbigera (Rutaceae) and synthesis of new oxidation products from melifoliones A and B [PDF]
Beilstein Journal of Organic ChemistryIn addition to new acetophenones and 2H-chromenes, the dichlormethane extract from leaves of Melicope barbigera A. Gray (Rutaceae) afforded a mixture of the isomeric melifoliones A (1) and B (2) as well as an oxidation product of 2, whose structure was ...
Horst Weber +7 more
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Deciphering the enzymatic mechanism of sugar ring contraction in UDP-apiose biosynthesis. [PDF]
Nat Catal, 2019 Savino S +9 more
europepmc +2 more sources
Известия высших учебных заведений: Геология и разведка, 2022 Introduction. The 60 m wide quartz dolerite stock, opened by a quarry, is heavily alternated by secondary processes, which makes it difficult to study.Aim.
V. A. Utenkov, A. V. Turov
doaj +1 more source
Ring Contraction of Saturated Cyclic Amines and Rearrangement of Acyclic Amines Through Their Corresponding Hydroxylamines [PDF]
Angewandte Chemie - International EditionYi Peng +3 more
openalex +3 more sources
Flow patterns generated by oblate medusan jellyfish: field measurements and laboratory analyses [PDF]
, 1997 Flow patterns generated by medusan swimmers such as jellyfish are known to differ according the morphology of the various animal species. Oblate medusae have been previously observed to generate vortex ring structures during the propulsive cycle ...
Leusen, J +4 more
core +13 more sources