Alkenyl aluminate reagents, obtained by hydroalumination of terminal alkynes followed by ate complexation with Meli, react readily with poorly reactive cyclic ethers such as cyclohexene oxide and oxetane, in the presence of BF3·Et2O. Alkenyl aluminate reagents obtained by reaction of an alkenyl tithium reagent and Me3Al behave similarly.
通过在末端BF 3 ·Et 2 O的存在下,通过末端
炔烃的加氢铝化反应,然后与Meli进行络合而获得的链烯铝酸盐试剂容易与反应性较弱的
环醚(如
环氧乙烷和氧杂
环丁烷)反应。烯基
钛试剂和Me 3 Al的行为相似。