isomerisation and Diels-Alder reaction with 2-acetoxyacrylonitrile, of 2,5-dihydroanisole, leads to the adducts (1) which may be used as starting point for the synthesis of a number of bicyclo [2,2,2] octenones, bicyclo [3,2,1] octenones and bicyclo [3,2,2] nonenones. Under similar conditions, 2,5-dihydrotoluene reacts via an ene-reaction to produce, after hydrolysis, the acetylcyclohexadiene (27). The base-catalysed
该原位异构化和用2-乙酰氧基Diels-Alder反应,2,5- dihydroanisole的,通向加合物(1,其可被用作起点的若干的合成)二环[2,2,2]
辛烯酮,双环[3,2,1]
辛烯酮和双环[3,2,2] nonenones。在相似的条件下,2,5-二氢
甲苯通过烯反应发生反应,
水解后生成乙酰基环
己二烯(27)。研究了2,5-二氢
甲苯的碱催化平衡和随后的Diels-Alder反应。