Potassium
tert-pentoxide solution has been used as a base to synthesize [RuClPh(CO)(H
2IMes)(PCy
3)] from second-generation Grubbs metathesis catalyst, [RuCl
2(=CHPh)(H
2IMes)(PCy
3)], (where H
2IMes is 1,3-dimethyl-4,5-dihydroimidazol-2-ylidene and PCy
3 is tricyclohexylphosphine) and benzyl alcohol. This complex is a solid, air-stable and highly active isomerization catalyst.
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