enones was followed by the reaction with ClP(O)(OEt)2 to afford the corresponding enol phosphates in moderate to good yields. The scope of this method was examined with sterically hindered or electronically biased enones and/or reagents. This activation of boron enolates was successfully applied to the synthesis of the methyl ether of Δ9-tetrahydrocannabinol.
将MeLi添加到BF 3 ·OEt 2活化的烯酮中1,4-加成Ar 2 Cu(CN)Li 2产生的烯醇
硼中,然后与ClP(O)(OEt)2反应,得到相应的烯醇
磷酸酯,产率中等至良好。用空间受阻或电子偏压的烯酮和/或试剂检查了该方法的范围。
硼烯醇化物的这种激活成功地应用于Δ的甲基醚的合成9
四氢大麻酚。