involving a combination of spiro-annulation by the action of 1,4-dibromomagnesiobutane on succinic acid derivatives followed by cyclization of the spirolactone using P2O5-CH3SO3H reagent has been developed for the synthesis of polyquinanes. By using bicyclo[2.2.1] heptane carboxylic acids as the precursors for the spirolactones, a triquinane [8] and a pentaquinane, [19], have been synthesized.
已经开发出一种方法,该方法涉及通过1,4-二
溴镁砂
丁烷对
琥珀酸衍
生物的作用进行螺环化,然后使用P 2 O 5 -CH 3 SO 3 H试剂将
螺内酯环化,以合成聚喹烷。通过使用
双环[2.2.1]庚烷羧酸作为
螺内酯的前体,已合成了三喹烷[8]和五喹烷[19]。