Regioselective synthesis of amino- and nitroarenes based on [3+3] cyclocondensations of 1,3-bis(silyloxy)-1,3-butadienes
作者:Abdolmajid Riahi、Mohanad Shkoor、Olumide Fatunsin、Mirza A. Yawer、Ibrar Hussain、Christine Fischer、Peter Langer
DOI:10.1016/j.tet.2009.09.014
日期:2009.11
Functionalized amino- and nitro-substituted biaryls and dibenzo[b,d]pyrid-6-ones (6(5H)-phenanthridinones) were prepared by [3+3]cyclocondensation of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with nitro-substituted 1-aryl-1-silyloxy-1-en-3-ones and subsequent hydrogenation. 4-Nitro- and 4-aminophenols were prepared based on formal [3+3] cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with
通过1,3-双(三甲基甲硅烷氧基)-1的[3 + 3]环缩合制备功能化的氨基和硝基取代的联芳基和二苯并[ b,d ]吡啶-6-酮(6(5 H)-菲啶酮)。具有硝基取代的1-芳基-1-甲硅烷基氧基-1-en-3-one的3-丁二烯和随后的氢化反应。基于1,3-双(三甲基甲硅烷氧基)-1,3-丁二烯与3-乙氧基-2-硝基-2-烯-1-酮的正式[3 + 3]环化反应,制备了4-硝基和4-氨基苯酚。