作者:Vladimir L. Rusinov、Grigori V. Zyryanov、Tatjana L. Pilicheva、Oleg N. Chupakhin、Hans Neunhoeffer
DOI:10.1002/jhet.5570340347
日期:1997.5
3-Aryl-1,2,4-triazin-5(2H)-ones 1a-c react with indoles 2a-c in trifluoroacetic acid/chloroform or in boiling butanol or acetic acid to give 3-aryl-6-(indolyl-3)-1,6-dihydro-1,2,4-triazin-5(2H)-ones 3a-g. Oxidation of the dihydro-1,2,4-triazin-5(2H)-ones 3a-e afforded 6-(indolyl-3)-1,2,4-triazin-5(2H)-ones 4a-e, products of nucleophilic substitution of hydrogen in 1a-c. Refluxing 1b with N-methylpyrrote
3-芳基-1,2,4-三嗪-5(2 H)-ones 1a-c在三氟乙酸/氯仿或沸腾的丁醇或乙酸中与吲哚2a -c反应生成3-芳基-6-(吲哚基-3)-1,6-二氢-1,2,4-三嗪-5(2 H)-ones 3a-g。二氢-1,2,4-三嗪-5(2 H)-ones 3a-e的氧化得到6-(吲哚基-3)-1,2,4-三嗪-5(2 H)-ones 4a-e,1a-c中氢亲核取代的产物。用N-甲基吡咯烷酮5b回流1b在丁醇中长时间停留会导致3-(4-氯苯基)-6-(1-甲酰基吡咯基-2)-1,2,4-三嗪-5(2 H)-1的形成。的反应1A-1C与吲哚2a-c中,吡咯5a,5b中,1,3-二甲基-2-苯基吡唑-4-酮(8)和氨基噻唑9A,B中的乙酸酐,得到1-乙酰基-3-芳基-6-杂芳基-1,6-二氢-1,2,4-三嗪-5(2 H)-ones 6a-s。的反应1A-1C与ñ -甲基-吡咯5b中在乙