Alkyne Oxidations by cis-Dioxoruthenium (VI) Complexes. A Formal [3+ 2] Cycloaddition Reaction of Alkynes with cis-[(Cn*)(CF3CO2) RuVIO2] ClO4 (Cn*= 1, 4, 7- …
…, PM Chan, WC Cheng, SM Peng, KC Lau…
Index: Che; Yu; Chan; Cheng; Peng; Lau; Li Journal of the American Chemical Society, 2000 , vol. 122, # 46 p. 11380 - 11392
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Citation Number: 86
Abstract
cis-Dioxoruthenium (VI) complexes,[Cn*(CF3CO2) RuVIO2] ClO4 (1)(Cn*= 1, 4, 7-trimethyl- 1, 4, 7-triazacyclononane) and cis-[(Tet-Me6) RuVIO2](ClO4) 2 (2)(Tet-Me6= N, N, N', N'- tetramethyl-3, 6-dimethyl-3, 6-diazaoctane-1, 8-diamine), oxidize disubstituted alkynes to 1, 2-diketones selectively in good to excellent yields under ambient conditions. The reactions proceed via the formation of dark blue [(Cn*)(CF3CO2) RuIVOC2R1R2O]+ intermediates, ...
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