作者:Dana Weiss、Pierre H. Dixneuf
DOI:10.1021/om0300326
日期:2003.5.1
Two new triynes, C6Me3-1,3,5-[CH2O(p-C6H4)CdropCH](3) (3) and C6Me3-1,3,5-[CH2O(p-C6H4)-PhC(OH)CdropCH](3) (5), have been prepared and used for the facile synthesis of several tris(vinylideneruthenium) and tris(allenylideneruthenium) complexes via metal-mediated activation and tautomerization or isomerization and dehydration of the alkyne moieties, respectively. Complexes C6Me3-1,3,5-[CH2O(p-C6H4)CH=C=Ru(dppe)(2)Cl]BF4}(3) (6) and C6Me3-1,3,5-[CH2O(p-C6H4)PhC=C=C=Ru(dppe)(2)Cl]BF4}(3) (8) were obtained by activation of 3 and 5 by [RuCl(dppe)(2)]BF4. C6Me3-1,3,5-[CH2O(p-C6H4)C=H=C=Ru(PCy3)(2)Cl-2](3) (7) and C6Me3-1,3,5-[CH2O(p-C6H4)PhC=C=C=Ru(PCy3)(p-cymene)Cl]OTf}(3) (9) resulted from the reaction of 3 with [RuCl2(p-cymene)](2)/2PCy(3) and of 5 with [RuCl(PCy3)(p-cymene)]OTf.