Efficient routes to cyclic 2,3-epoxyalcohols from cycloalkenyl ketones, via cycloalkenyl alcohols
摘要:
The minimising of torsional strain and non-bonding interactions is proposed as the explanation of high diastereoselectivity observed in the epoxidation of cycloalkenyl alcohols. reported for twenty three examples. The resulting 2,3-epoxyalcohols are key intermediates in the synthesis of tricyclic 1, 2-diols and beta-hydroxy ketones
Efficient routes to cyclic 2,3-epoxyalcohols from cycloalkenyl ketones, via cycloalkenyl alcohols
摘要:
The minimising of torsional strain and non-bonding interactions is proposed as the explanation of high diastereoselectivity observed in the epoxidation of cycloalkenyl alcohols. reported for twenty three examples. The resulting 2,3-epoxyalcohols are key intermediates in the synthesis of tricyclic 1, 2-diols and beta-hydroxy ketones
1,1-Regioselective alkenylboration of styrenes enabled by palladium catalysis
作者:Dong Wu、Hailiang Pang、Guoyin Yin
DOI:10.1016/j.cclet.2022.108087
日期:2022.12
Despite the 1,2-difunctionalization reactions of styrenes have been well developed, the 1,1-regioselective addition reaction remains challenging. We disclose herein a palladium-catalyzed, highly 1,1-regioselective alkenylboration of styrenes by using alkenyl triflates and a diboron reagent as the coupling partners. A wide scope of styrenes derivatives and alkenyl triflates participate this reaction