counterparts derived through oxyallyl cation additions. As a first step toward utilizing these highly versatile intermediates in synthesis, a study of the addition of various nucleophiles to the halogenated nucleus has been conducted. It has been found that these halogenated systems are amenable to a wide range of functionalizations in high yields and with good selectivities.
几十年来,已经知道,通过将
呋喃或
环戊二烯与四
氯或四
溴环
丙烯进行环加成反应,可以容易地获得高度官能化的四卤代双环[3.2.1]
辛二烯家族。然而,相对于它们通过羟基烯丙基阳离子加成而衍生的更广为人知的对应物,这些高度功能化的结构单元在合成中的应用仍处于相对未被探索的状态。作为在合成中利用这些高度通用的中间体的第一步,已经进行了将各种亲核试剂添加到卤代核中的研究。已经发现,这些卤化体系以高收率和良好的选择性适合于广泛的官能化。