Skipping out: The title reaction using internal secondary allylic phosphates proceeded with excellent γ regioselectivity and E stereoselectivity to give skipped enynes. Enantioenriched secondary allylic phosphates proceeded with 1,3‐anti stereochemistry to afford the corresponding chiral 1,4‐enynes, which were used for various derivatizations and the formal total synthesis of a GnRH antagonist. phen=1
跳过:使用内部仲烯丙基
磷酸酯的标题反应以优异的γ区域选择性和E 立体选择性进行,得到跳过的烯炔。富含对映体的仲烯丙基
磷酸酯经过1,3-抗立体
化学反应,得到相应的手性1,4-烯炔,可用于各种衍生化反应和GnRH拮抗剂的正式全合成。phen = 1,10-
菲咯啉。