Reactions of 4-dimethylamino-3-quinolinyl sulfides with nitrating mixture and transamination of 4-dimethylamino-3-methylsulfinyl-6-nitroquinoline
作者:Elwira Chrobak、Andrzej Maślankiewicz
DOI:10.1002/jhet.5570450436
日期:2008.7
4-Amino-3-quinolinyl sulfides 4d-e and 7a-c were prepared by amination of 4-chloro-3-quinolinyl sulfides 4c or 1c, respectively, in methanol (140-160 °C) or in boiling phenol with yields up to 95 %. Reaction of 4-dimethylamino-3-quinolinyl sulfides 7c and 4e with nitrating mixture proceeded simultanously as oxidation of the methylthio group to the methylsulfinyl one and as C6-nitration to form 6-nitro-β-quinolinyl
4-氨基-3-喹啉基硫化物4d-e和7a-c是通过在甲醇(140-160°C)或沸腾的苯酚中分别将4-氯-3-喹啉基硫化物4c或1c胺化而制备的,收率最高至95%。4-二甲基氨基-3-喹啉基硫化物7c和4e与硝化混合物的反应同时进行,其中甲硫基氧化为甲基亚磺酰基1,并且C 6硝化分别形成6-硝基-β-喹啉基亚砜9c或10b。当与伯脂族胺和氨反应时,4-二甲基氨基-3-甲基亚磺酰基-6-硝基喹啉9c经历了酸催化的氨基转移反应。