酸位或紫外光诱导的茴香脑异构化和二聚化。

Chromatography Laboratory, CIBIMOL, Research Center of Excellence CENIVAM, Building 45, Universidad Industrial de Santander, Carrera 27 calle 9, Bucaramanga, Colombia.

Molecules. 2010 Jul 22;15(7):5012-30. doi: 10.3390/molecules15075012.

The formation of cis-anethole and various dimers as a result of the exposure of trans-anethole to microporous solid acids (dealuminated HY zeolites), or UV-Vis irradiation was established by means of high resolution gas chromatography coupled to mass spectrometry. 3,4-bis-(4-Methoxyphenyl)-(E)-hex-2-ene was the most abundant compound among eight different methoxyphenyl-disubstituted hexenes produced by electrophilic addition and elimination reactions induced by HY zeolites. (1a,2a,3b,4b)-1,2-bis(4-Methoxyphenyl)-3,4-dimethylcyclobutane was the principal component in the mixture of 5 methoxyphenyl-disubstituted cyclobutanes found, together with cis-anethole, after UV-Vis irradiation of a trans-anethole solution in toluene.

采用高分辨气相色谱-质谱联用技术，证实了反式茴香脑在微孔固体酸（脱铝 Y 型沸石）或紫外光照射下形成顺式茴香脑和各种二聚体。在由 HY 沸石诱导的亲电加成和消除反应产生的 8 种不同的甲氧基苯基取代的己烯中，3,4-双-(4-甲氧基苯基)-(E)-己-2-烯是最丰富的化合物。在甲苯溶液中进行紫外光照射后，在发现的 5 种甲氧基苯基取代的环丁烷混合物中，除顺式茴香脑外，还发现了（1a,2a,3b,4b）-1,2-双-(4-甲氧基苯基)-3,4-二甲基环丁烷，这是混合物的主要成分。