Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 31608-22-7, C9H17BrO2. A document type is Article, introducing its new discovery., category: Tetrahydropyrans
Synthesis, Characterization, and Stereochemistry of Bridged Intramolecularly Alkylated Cobaloximes; Monomeric and Dimeric Complexes of Different Configuration
Ligands have been synthesized containing two vicinal dioxime functions joined by a carbon chain to which is attached in the centre a bromomethyl or chloromethyl group (20, 22, 25).These ligands, upon reaction with cobalt(II) chloride in the presence of pyridine and sodium borohydride afforded bridged intramolecularly alkylated cobaloximes.When the vicinal dioxime functions are separated by a chain of nine carbon atoms mainly dimeric complexes are formed.Two of these, 26 and 27, were isolated and characterized by spectroscopic methods and their structures were established by X-ray crystallography.Ligands containing eleven or thirteen carbon atoms between the dioxime functions afforded mainly monomeric cobaloximes with cis configuration, e. g. 28.The trans-monomeric complex 30 was produced along with the cis isomer when the number of carbon atoms in the bridge was raised to fifteen.
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Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics