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- W1966710235 abstract "A cursory glance at the current synthetic literature attests to the explosion in the application of metathesis. The ring-closure metathesis (RCM) is the most widely used concept and the Grubbs ruthenium alkylidenes 1 and 2 and the Schrock molybdenum alkylidene 3 are the exclusive catalysts. All three catalysts are reactive with a diverse range of substrates, are tolerant of many functional groups (e.g. ROH, RCOR, RCHO, RCONR2) and are effective in RCMs from simple 5-, 6-, 7-membered to 17-membered carbo-and hetero-cyclic arrays. Although the Schrock catalyst is the most reactive, it has a narrower functional group tolerance (e.g. incompatible with ROH and RCO2H groups). In a further contrast, the Schrock catalyst promotes RCM of di-, tri- and even tetra-substituted alkenes whereas the Grubbs catalysta are successful for only disubstituted alkenes (Ene-yne RCm is an exception). Typcial RCM conditions are high dilution (10-50 mM) and slow substrate addition, especially when competitive polymerization is observed." @default.
- W1966710235 created "2016-06-24" @default.
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- W1966710235 date "1999-02-01" @default.
- W1966710235 modified "2023-10-17" @default.
- W1966710235 title "Spotlight 2, Metathesis. The Schrock and Grubbs Catalysts" @default.
- W1966710235 doi "https://doi.org/10.1055/s-1999-5991" @default.
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