Reactions of Furylruthenium Complexes with Oxygen and Trimethylsilyl Azide
Resource
European Journal of Inorganic Chemistry 2006 (3): 649-655
Journal
European Journal of Inorganic Chemistry
Journal Issue
3
Pages
649-655
Date Issued
2006
Date
2006
Author(s)
Abstract
The reaction of the (α-alkoxyfuryl)ruthenium complexes 4 with oxygen opens the five-membered furyl ring to give the addition product [Ru]O 2CCR=CHCO2CH3, (5, [Ru] = Cp(PPh 3)2Ru). Further reactions of 5 with CH3I and with organic acid gave CH3O2CCR=CHCO2CH 3, (6), and HO2CCR=CHCO2CH3, (7), respectively. The reaction of 4 with TMSN3 [TMS = (CH 3)3Si] gives the ruthenium azide [Ru]-N3 and α-alkoxyfuran, which is readily hydrolyzed to lactone in acidic medium. Treatment of the cyclopropenylruthenium complex 11b containing a methyl crotonate group with TMSN3 affords the five-membered-ring triazole and [Ru]-CN. In this reaction cleavage of the C=C double bond of the three-membered ring could be caused by consecutive additions of TMSN3 to olefinic carbon atoms of intermediates formed during the reaction. © Wiley-VCH Verlag GmbH & Co. KGaA, 2006.
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journal article
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