β-Nitrostyrenes underwent a Diels–Alder reaction with Danishefsky’s diene to afford cyclohexenes together with the corresponding hydrolyzed products, 3-arylated-5-methoxy-4-nitrocyclohexanones. When the reaction was conducted in the presence of water, the cyclohexenes were efficiently hydrolyzed into cyclohexanones. Subsequent aromatization by heating the cyclohexanone with a catalytic amount of iodine in dimethyl sulfoxide gave 3-arylated-4-nitrophenols. The reaction of nitrostyrenes with Danishefsky’s diene could be conducted in one pot to directly afford the corresponding nitrophenols. Moreover, a heteroaryl group, e.g., a thienyl group could be introduced into the nitrophenol framework.

中文翻译：

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通过多官能化的环己酮从β-硝基苯乙烯一锅无金属地合成3-芳基-4-硝基苯酚

β-硝基苯乙烯与Danishefsky的二烯进行Diels-Alder反应，得​​到环己烯以及相应的水解产物3-芳基-5-甲氧基-4-硝基环己酮。当反应在水的存在下进行时，环己烯被有效地水解成环己酮。随后通过将环己酮与催化量的碘在二甲基亚砜中加热来进行芳构化，得到3-芳基-4-硝基苯酚。硝基苯乙烯与Danishefsky的二烯的反应可以在一个罐中进行，以直接提供相应的硝基酚。此外，可以将杂芳基，例如噻吩基引入到硝基酚骨架中。