Aldehydes undergo a smooth coupling with (E/Z)-non-3-en-8-yn-1-ol in the presence of 10 mol% of CuX and BF3·OEt2 under mild conditions to produce a novel class of octahydrocyclohepta[c]pyran-6(1H)-one derivatives in good yields with excellent diastereoselectivity.
醛在温和条件下与(
E/
Z)-非3-烯-8-炔-1-醇在存在10 mol%的CuX和BF
3·OEt
2>的情况下进行顺利偶联,产生一类新颖的八氢杂环庚七[c]吡喃-6(1H)-酮衍生物,收率良好,具有优异的对映选择性。