Synthesis and some transformations of 2- and 2,2′-substituted bis(ethylenedioxy)biphenyls containing cyclopropane fragments
作者:S. S. Mochalov、N. A. Puretskii、A. N. Fedotov、E. V. Trofimova、V. A. Tafeenko、L. A. Aslanov、N. S. Zefirov
DOI:10.1134/s107042801201006x
日期:2012.1
arylcyclopropylcarbinols which tended to undergo intramolecular alkylation of the aromatic ring with conservation of the cyclopropane fragment (monosubstituted derivatives) and formation of cyclopropyl-containing cyclic ethers (disubstituted ethylenedioxybiphenyls). The reduction of the nitro group in 2′-cyclopropylcarbonyl-2-nitro-4,5: 4′,5′-bis(ethylenedioxy)biphenyl was accompanied by intramolecular cyclization
3,4:3',4'-双(亚乙基二氧基)联苯仅在2位进行溴化,硝化和环丙基羰基化。与2-取代的双(亚乙二氧基)联苯的类似反应在2'-位区域选择性地发生。2-环丙基羰基-和2,2'-双(环丙基羰基)双(乙二氧基)联苯与复杂的金属氢化物的反应提供了相应的芳基环丙基甲醇,该芳族环丙基甲醇易于发生芳环的分子内烷基化,同时保留环丙烷片段(单取代衍生物)并形成含环丙基的环醚(二取代的乙二氧基联苯)。2'-环丙基羰基-2-硝基-4,5:4',5'-双(亚乙基二氧基)联苯中硝基的还原伴随着分子内环化反应,涉及空间上紧密的官能团,