New Syntheses of Chloro-Substituted Derivatives of Tropone The Diels-Alder reaction of donor-substituted 1.3-dienes with tetra chlorocyclopropene leads to novel bicyclo[4.l.0]heptenes, which on acidic hydrolysis and oxidalion yield a new series of chloro-substituted derivatives of tropone by way of elimination of hydrogen chloride concerted with an electrocyclic opening of the three membered ring.
托品酮氯代衍
生物的新合成 供体取代的 1.3 二烯与
四氯环丙烯的 Diels-Alder 反应生成新的双环[4.1.0]庚烯,在酸性
水解和氧化作用下,通过消除
氯化氢与三元环的电环开环协同作用,生成一系列新的
托品酮氯代衍
生物。