Low Pressure Hydrogenation of Unsaturated Sulphides with Homogeneous and Heterogeneous Ruthenium Catalysts
摘要:
Ru2O . nH(2)O and [Ru3O(AcO)(6)(H2O)(3)](AcO-)-Ac-+ were examined for catalytic activity in the hydrogenation of a series of unsaturated sulphides under heterogeneous and homogeneous conditions, respectively. By the appropriate combination of these two methodologies, a number of saturated sulphides could be synthesized in satisfactory to good yields, thus minimizing side reactions.
Low Pressure Hydrogenation of Unsaturated Sulphides with Homogeneous and Heterogeneous Ruthenium Catalysts
摘要:
Ru2O . nH(2)O and [Ru3O(AcO)(6)(H2O)(3)](AcO-)-Ac-+ were examined for catalytic activity in the hydrogenation of a series of unsaturated sulphides under heterogeneous and homogeneous conditions, respectively. By the appropriate combination of these two methodologies, a number of saturated sulphides could be synthesized in satisfactory to good yields, thus minimizing side reactions.
作者:Marie E. Krafft、Carmelinda A. Juliano、Ian L. Scott、Colin Wright、Michael D. McEachin
DOI:10.1021/ja00005a038
日期:1991.2
The regioselectivity of the cobalt-mediated cocyclization of an alkene, an alkyne, and carbon monoxide has been shown to be directed by the use of a soft atom, either sulfur or nitrogen, tethered to the alkene partner by a carbon chain. Direction from the homoallylic position is more efficient thant from the allylic or bishomoallylic position. A rationale is proposed to explain this observation. Studies