作者:Qing-Zheng Yang、Olivier Siri、Hugues Brisset、Pierre Braunstein
DOI:10.1016/j.tetlet.2006.06.025
日期:2006.8
We report the synthesis and first characterization of N-alkyldiaminoresorcinols (or 4,6-bis-dialkylaminobenzene-1,3-diols C6H2(NHR)2(OH)2) (10a, R = CH2-2-Py; 10b, R = CH2-3-Py; 10c, R = CH2-4-Py) which result from one-pot stepwise reactions: (i) air–oxidation of diaminoresorcinol 3, (ii) transamination reaction leading to the corresponding functional 6π+6π quinonemonoimine zwitterions C6H2(NHR)2(O)2
我们报告的合成和N-烷基二氨基间苯二酚(或4,6-双-二烷基氨基苯-1,3-二醇C 6 H 2(NHR)2(OH)2)的合成和首次表征(10a,R = CH 2 -2-Py ;10b,R = CH 2 -3-Py;10c,R = CH 2 -4-Py),这是由一锅式逐步反应产生的:(i)二氨基间苯二酚3的空气氧化,(ii)氨基转移反应导致相应的功能性6π+6π醌单亚胺两性离子C 6 H 2(NHR)2(O)2(9a,R = CH 2 -2-Py;9b,R = CH 2 -3-Py;在图9c中,R = CH 2 -4-Py),(iii)在带有吡啶部分的相应伯胺存在下的还原和再芳构化。