作者:Bastien Nay、Jean-François Peyrat、Joseph Vercauteren
DOI:10.1002/(sici)1099-0690(199909)1999:9<2231::aid-ejoc2231>3.0.co;2-k
日期:1999.9
Syntheses of 2-phenyl-2H-chromene (3-flavene) and cinnamaldehyde aryloxy-hemiacetal, involving nucleophilic substitution by phenols of the π-allyl palladium complex formed from the acylal of cinnamaldehyde in the presence of catalytic amounts of palladium(0) (10 mol-%), are presented. Alternatively, the corresponding alcohol acetates furnish 1,3-diarylpropenes and cinnamyl aryl ethers. Our results
2-苯基-2H-色烯(3-黄酮)和肉桂醛芳氧基-半缩醛的合成,包括在催化量的钯(0)存在下,由肉桂醛的酰基形成的π-烯丙基钯络合物的苯酚亲核取代( 10 mol-%),呈现。或者,相应的醇乙酸酯提供1,3-二芳基丙烯和肉桂基芳基醚。我们的结果证明了间苯三酚在类黄酮合成中的 Tsuji-Trost 反应中具有强大的 C-亲核性,并再次说明了苯酚的 O-亲核性。