α‐xiloidone is an interesting chromene that are structurally related to lapachones; in this work, we selectively synthesized α‐xiloidone from the reaction of lawsone 1 with 3,3‐chloro‐3‐methylbut‐1‐yne under copper/I2 catalysis via propargyl Claisen rearrangement.
α-xiloidone是一种有趣的色烯,在结构上与拉帕酮有关。在这项工作中,我们通过炔丙基克莱森重排,在
铜/ I 2催化下,通过Lawone 1与3,3-
氯-3-甲基丁-1-炔的反应选择性地合成了α-昔洛酮。