A variety of 4,5-dihydrofuro[2,3-b]azocin-6-one derivatives were expediently assembled through Au(I)-catalyzed cyclization and 2-(tert-butyl)-1,1,3,3-tetramethylguanidine (BTMG)-mediated [4+4] annulation reactions of enyne-amides and ynones. The reactions exhibit high efficiency with excellent regio- and diastereoselectivity. A broad spectrum of substrates was utilized. The products with an eight-membered
通过 Au(I) 催化环化和 2-(叔丁基)-1,1,3,3-四甲基胍,方便地组装了多种 4,5-二氢呋喃[2,3- b ]azocin-6-one 衍生物(BTMG)-介导的烯炔酰胺和炔酮的[4+4]环化反应。该反应表现出高效率以及出色的区域和非对映选择性。使用了广泛的底物。具有八元环的产品可能在生物化学和医学科学中有用。此外,产品可以很容易地转化为各种衍生物。