Synthesis and C-13 NMR study of the triangulo-clusters [Pt-3(mu-CO)(3-n)(mu-SO2)(n)(PR3)(3)] (n=0-3)
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The syntheses and single crystal X-ray structural analysis of five novel hetero- and homometallic μ3-oxo trinuclear cluster with the formula [FeIII2MII(μ3-O)(μ-O2CCH3)6(4-Rpy)3] · x(4-Rpy) · y(CH3CN) where R ) Ph for 1(Fe2Mn),2(Fe2Fe), 3(Fe2Co), 4(Fe2Ni) a ...
Reactions of the dinuclear ruthenium complex [(p-cymene)Ru(mu-Cl)3RuCl(C2H4)(PCy3)] with phenylacetylene or tert-butylacetylene gave the vinylidene complexes [(p-cymene)Ru(mu-Cl)3RuCl(=C=CHR)(PCy3)] (R = tBu, Ph), which were characterized crystallographica ...
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The synthesis of the alkoxide [OC(tBu)(CF3)2]− by the reaction of tBuM-reagents (M = Li; MgX) with hexafluoroacetone was attempted. This alkoxide was anticipated to be a good building block for novel weakly coordinating anions. However, in all attempted sy ...
Under appropriate conditions sulfur dioxide reacts with 1,3-dienes in a hetero-Diels-Alder fashion. In the case of 1-alkoxy-1,3-dienes the 6-alkoxy-3,6-dihydro-1,2-oxathiin-2-oxides (sultines) so-obtained can be ionized in the presence of Lewis or protic a ...
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In the presence of sulfur dioxide and an acid promoter, (-)-(1E,3Z)-2-methyl-1-((1S)-1-phenyleth- oxy)penta-1,3-dien-3-yl isobutyrate reacts with (Z)-3-(trimethylsilyloxy)-pent-2-ene giving a silyl sulfinate intermediate that undergoes, in the presence of ...
Natural polyketides show important biological activity. The inherent stereochemical complexity present in this class of molecules has captured the imagination of organic chemists. Their stereocontrolled, asymmetric total synthesis is a permanent and stimul ...
