Iron-catalyzed δ-selective conjugate addition of methyl and cyclopropyl Grignard reagents to α,β,γ,δ-unsaturated esters and amides
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DOI: 10.1016/j.tetlet.2018.12.043
Abstract: Abstract Iron-catalyzed δ-selective conjugate addition of methyl and cyclopropyl Grignard reagents to α,β,γ,δ-unsaturated esters and amides took place in good yields to give products exclusively with cis-β,γ-olefinic bond. read more here.
Keywords: iron catalyzed; conjugate addition; methyl cyclopropyl; selective conjugate ... See more keywords
CH Bond Activation of Unsaturated Hydrocarbons by a Niobium Methyl Cyclopropyl Precursor. Cyclopropyl Ring Opening and Alkyne Coupling Reaction
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DOI: 10.1021/acs.organomet.6b00506
Abstract: The transient intermediate η2-cyclopropene/bicyclobutane niobium complex [TpMe2Nb(η2-c-C3H4)(MeCCMe)] A, generated by an intramolecular β-H abstraction of methane from the methyl cyclopropyl complex [TpMe2NbMe(c-C3H5)(MeCCMe)] (1), is able to cleave the CH bond of a variety of unsaturated… read more here.
Keywords: unsaturated hydrocarbons; meccme; bond; cyclopropyl ... See more keywords