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Simple, convenient methods have been developed using readily available, easy-to-handle reagents to access a variety of chiral amino alcohols and amines, which have considerable potential for… (More)
A mixed-ligand copper(II) complex, [Cu(bhac)(Hdmpz)], with a tridentate Schiff base, acetylacetone benzoylhydrazone (H2bhac) and a monodentate heterocycle, 3,5-dimethylpyrazole (Hdmpz), has been… (More)
Abstract Diborane is readily generated in situ at 25 °C in toluene using the Bu 4 NBH 4 /PhCH 2 Cl and Bu 4 NBH 4 /I 2 reagent systems. The reagent prepared in this way is used for the reduction of… (More)
Racemic and optically pure (-)-(3R,4R)-3,4-diphenyltetrahydrothiophene, (+)-(2S,5S)-2,5-diphenyltetrahydrothiophene, and (-)-(3S,6S)-3,6-diphenyl-1,2-dithiane were synthesized by use, in the crucial… (More)
Dimesylates of chiral diols cyclize in the presence of sodium sulfide to provide sulfur heterocycles (III) and (VII).
Abstract Enantiomerically pure (2S,6S)-2,6-diphenyltetrahydro-2H-thiopyran, (2S)-2-phenyltetrahydro thiophene, and (2S)-2-phenyltetrahydro-2H-thiopyran were prepared in 70–72% yields and with 86–99%… (More)