Synthesis of functionalized 6(5H)-phenanthridinones based on a [3+3]-cyclocondensation/lactamization strategy
作者:Mirza A. Yawer、Ibrar Hussain、Inam Iqbal、Anke Spannenberg、Peter Langer
DOI:10.1016/j.tetlet.2008.05.067
日期:2008.7
Functionalized 6(5H)-phenanthridinones (dibenzo[b,d]pyrid-6-ones) were prepared by [3+3]-cyclocondensation of 1-trimethylsilyloxy-1,3-butadienes with nitro-substituted 1-aryl-1-silyloxy-1-en-3-ones and subsequent reductive lactamization. (c) 2008 Elsevier Ltd. All rights reserved.
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