Aqueous Wittig reactions of semi-stabilized ylides. A straightforward synthesis of 1,3-dienes and 1,3,5-trienes
作者:James McNulty、Priyabrata Das
DOI:10.1016/j.tetlet.2009.07.133
日期:2009.10
A direct synthesis of 1,3-dienes and 1,3,5-trienes from the reaction of semi-stabilized ylides and a range of saturated and unsaturated aldehydes is reported in water as solvent, employing sodium hydroxide as base. The water-soluble phosphine oxide side product is removed simply by aqueous partitioning of the organic products.
据报道,以氢氧化钠为碱,在水为溶剂的情况下,由半稳定化的烷基化物与一定范围的饱和和不饱和醛的反应直接合成了1,3-二烯和1,3,5-三烯。水溶性氧化膦副产物可通过有机产物的水分配简单地除去。