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Enhanced activity, lower catalyst loading, shorter reaction time, and expanded substrate scope are the advantages of [Mn(dpm)3] over Co catalysts in the hydrohydrazination reaction of alkenes. Thus, sterically hindered alkenes, including tetrasubstituted a ...
2,3-Dichloropyridines undergo a mono- or a dicarbonylation in the presence of carbon monoxide, an alc., and a palladium catalyst, affording selectively either alkyl 3-chloropyridine-2-carboxylates or dialkyl pyridine-2,3-dicarboxylates in good yields, depe ...
Conversion of unactivated olefins to azides was achieved with high Markovnikov selectivity for a broad range of alkenes by using 6 mol % Co(BF4).6H2O and ligand I, with 3 equiv of tosyl azide as the nitrogen source and simple silanes (e.g., PhSiH3, tetrame ...
Azides are building blocks of increasing importance in synthetic chemistry, chemical biology, and materials science. Azidobenziodoxolone (ABX, Zhdankin reagent) is a valuable azide source, but its safety profile has not been thoroughly established. Herein, ...
Treatment of olefins with an excess of di-tert-Bu azodicarboxylate, an equimolar amt. of PhSiH3, and a catalytic amt. of a Co(III) catalyst afforded the Markovnikov hydrazide products, e.g., I, for a broad range of olefins, in good yields. [on SciFinder (R ...
