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Search results for: ring opening metathesis
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... oxetene intermediate and an electrocyclic ring-opening of the oxetene. ... Sc(OTf)3-Catalyzed Ring-Closing Alkyne-Carbonyl Metathesis Zhenjie Su ... oxetene intermediate and an electrocyclic ring-opening of the oxetene. ...
... . Angular hydroxylation followed by ring expansion gave the bromo ... diastereomers of 1 could undergo ring-closing metathesis , to form ... other by way of the open-chain enone. When MgBr2 ...
... 519. Key Words: RING-CLOSING METATHESIS/CHLORO-ARYLOXIDE COMPLEXES ... 565. Key Words: OPENING METATHESIS POLYMERIZATION/OLEFIN ... : Recent applications of olefin metathesis and related reactions in ...
... , is the highly-substituted eight-membered ring. A key step ... the enantiomerically-enriched epoxide 12. Opening with vinyl magnesium bromide ... by exposure to the second-generation Grubbs catalyst gave the diol ...
... camphorsulfonic acid, the cyclopropyl ring opened via intermediate 12 ... ester set the stage for ring-closing metathesis . Selective hydrogenation ... of 1 followed by acid-mediated opening of the intermediate cyclopropane ...
... the preparation of five-membered carbocyclic rings. J. W ... /carbyne complexes/metathesis ring-closing metathesis/fischer carbene ... /m = cr/formal total synthesis/physical ...
... relative configuration around the six-membered ring by double hydroboration / ... of the sulfone 14. Ring-closing metathesis gave 15, ... on oxidative SO2 extrusion followed by deprotection gave ( - ...
... 3 ]) two tetrahydrofuran rings , have shown interesting ... 3 that relied on the ring-closing metathesis of 1 to ... 7 was available by the opening of the enantiomerically-pure epoxide ...
... relative configuration around the medium ring of 1. Selective ... enol triflate, that via ring-closing metathesis and protection/ ... an epoxide, that was opened with the lithium acetylide ...
... Taber University of Delaware C-N Ring Construction: The Harrity ... by Petasis-Mannich coupling followed by ring-closing metathesis , to the ... with high facial selectivity. Opening of the cyclopropane gave ...