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Search results for: olefin metathesis
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... remarkably good yield. Left with the olefin and the methyl ester, a dihydoxylation ... ! Thus, they then tried some metathesis , again screening conditions; Blechert's catalyst ...
... and yield. The remaining aldehyde was olefinated to yield a diene, which was ... we're now perfectly set for a ring-closing metathesis to form the medium ring. This ...
... product yield was obtained by irradiating the bisolefin precursor in the presence of 15 mol ... . Oliver Kappe Karl-Franzens-University Graz Ring Closing Metathesis for Guaianolide Synthesis Oliver Reiser and his ...
... was then ready for functionalisation with an olefin and the tosylate converted to an iodide ... implementation in 83% overall yield. Metathesis of the acetylene with 1,4-pentadiene ...
... the two existing stereocenters, and an olefin, which combine to impart asymmetric control ... homologate the aldehyde, and then cross metathesis . A pair of acylations builds up ...
... ) a one-pot asymmetric hydroformylation and Wittig olefination to transform alkene 19 into ?-chiral ? ... was synthesized via an E-selective ring closing metathesis reaction , could be functionalized to make ...
... function, and oxidative cleavage of the olefin then furnished the carboxylic acid 6. ... very high levels of stereocontrol. Cross metathesis using ruthenium catalyst 3 first with ethyl ...
... of a metathesis reaction to couple both olefins together. A subsequent Simmons-Smith reaction would ... vinyl magnesium bromide and use of a metathesis reaction to couple both olefins together. ...
... Words: NUCLEOPHILIC ACYL SUBSTITUTION/CLOSING OLEFIN METATHESIS/MARINE NATURAL-PRODUCTS/INTRAMOLECULAR HECK ... /CHROMIUM CARBENE COMPLEXES/LOW-VALENT TITANIUM/NI(II)/CR( ...
... /ALKYLATING-REAGENTS/CRYSTAL-STRUCTURES/TRANSITION-METALS/OLEFIN-METATHESIS Oxidative Coupling via Organocopper Reagents. T ... /ALKYLATING-REAGENTS/CRYSTAL-STRUCTURES/TRANSITION-METALS/OLEFIN-METATHESIS Oxidative Coupling via Organocopper Reagents. T ...
