Transformations of para-Substituted Benzylcyclopropanes, Allylbenzenes, and Diphenylmethanes under Nitration with Nitric Acid in Acetic Anhydride
作者:S. S. Mochalov、R. A. Gazzaeva、A. N. Fedotov、B. P. Archegov、E. V. Trofimova、Yu. S. Shabarov、N. S. Zefirov
DOI:10.1007/s11178-005-0179-x
日期:2005.3
Electrophilic nitration of benzylcyclopropanes, allylbenzenes, and diphenylmethanes containing ortho, para-orienting substituents in the para position of the benzene ring results mainly in replacement of the cyclopropylmethyl, allyl, or benzyl group, respectively (ipso substitution). The nitration of 4-cyclopropylallylbenzene is not accompanied by nitrodealkylation, and the products are only 2- and 3-nitro-4-cyclopropylallylbenzenes.
苯环对位上含有正交、对位取向取代基的苄基环丙烷、烯丙基苯和二苯基甲烷的亲电硝化主要分别导致环丙基甲基、烯丙基或苄基的取代(同位取代)。4-环丙基烯丙基苯的硝化不伴有硝基脱烷基化,产物仅为 2-和 3-硝基-4-环丙基烯丙基苯。