A Mechanistic Study of the Utilization of arachno??Diruthenaborane [(Cp* RuCO) 2B2H6] as an Active Alkyne??Cyclotrimerization Catalyst
…, J Borowka, MC Holthausen, S Ghosh
Index: Geetharani; Tussupbayev, Samat; Borowka, Julia; Holthausen, Max C.; Ghosh, Sundargopal Chemistry - A European Journal, 2012 , vol. 18, # 27 p. 8482 - 8489
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Citation Number: 35
Abstract
Abstract The reaction of nido-[1, 2-(Cp* RuH) 2 B 3 H 7](1 a, Cp*= η 5-C 5 Me 5) with [Mo (CO) 3 (CH 3 CN) 3] under mild conditions yields the new metallaborane arachno-[(Cp* RuCO) 2 B 2 H 6](2). Compound 2 catalyzes the cyclotrimerization of a variety of internal- and terminal alkynes to yield mixtures of 1, 3, 5-and 1, 2, 4-substituted benzenes. The reactivities of nido-1 a and arachno-2 with alkynes demonstrates that a change in ...
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