Retro-Mannich reactions of 3-alkyl-3,4-dihydro-2H-1,3-benz[e]oxazines and the synthesis of axially chiral resorcinarenes
作者:Philip C.Bulman Page、Harry Heaney、Matthew J. McGrath、Edward P. Sampler、Robert F. Wilkins
DOI:10.1016/s0040-4039(03)00393-9
日期:2003.3
4-dihydro-2H-1,3-benz[e]oxazines into 2-N,N-dialkylaminomethylphenol derivatives, using morpholine and other high boiling secondary amines, have been identified and characterised. Additional experiments have established the involvement of o-quinone methide intermediates in the retro-Mannich reactions. Axially chiral resorcinarenes have been prepared by utilising the exchange reactions.
已经确定了使用吗啉和其他高沸点仲胺将3-烷基-3,4-二氢-2 H -1,3-苯并[ e ]恶嗪转化为2- N,N-二烷基氨基甲基苯酚衍生物的中间体。和表征。另外的实验已经确定了邻-醌甲基化物中间体参与了逆曼尼希反应。通过利用交换反应已经制备了轴向手性间苯二芳烃。