High-Pressure Access to the Δ<sup>9</sup>-<i>cis</i>- and Δ<sup>9</sup>-<i>trans-</i>Tetrahydrocannabinols Family
作者:Lucio Minuti、Eleonora Ballerini
DOI:10.1021/jo200796b
日期:2011.7.1
Diels–Alder reactions of a range of 1-(alkoxy/alkyl-substituted phenyl)buta-1,3-dienes with methyl vinyl ketone and methyl acrylate carried out in ethanol as the reaction medium under 9 kbar pressure were investigated. The use of high pressure as the activating method of the Diels–Alder reactions allows the efficient and endodiastereoselective generation of a series of cis-cyclohexenyl-benzene cycloadducts
研究了1-(烷氧基/烷基取代的苯基)丁1,3-二烯与甲基乙烯基酮和丙烯酸甲酯在9 kbar压力下的乙醇中作为Diels-Alder反应的反应介质。使用高压作为Diels-Alder反应的活化方法,可以高效,内非对映选择性地生成一系列顺式-环己烯基-苯环加合物,并选择性地转化为其反式-末端。所产生的顺式-环己烯基-苯和反式-环己烯基-苯是用于获得取代的特权顺式-6a,7、8、10a-四氢-6 H-苯并[ c ]苯并二甲苯的有用前体。反式-6a,7,8,10a-四氢-6 H-苯并[ c ]亚甲基骨架。Δ的全合成9 -顺四氢大麻酚(THC)和Δ 9 -反-THC,通过使用选择的狄尔斯-阿德耳加合物,中有描述。最后,为了获得Δ路线9 -反式中基于(对映异构体二者纯形式-THC小号) - ( - ) - 1-氨基-2-(甲氧基甲基)(SAMP)也报道吡咯烷腙方法。