Synthesis of D2-symmetric 5,10,15,20-tetraarylporphyrins from C2-symmetric benzaldehydes and achiral aryldipyrromethanes
作者:Ronald L. Halterman、Xiaodan Mei
DOI:10.1016/0040-4039(96)01379-2
日期:1996.8
enantiomerically pure D2- symmetric 5,10,15,20-tetraarylporphyrins has been synthesized by condensation of C2-symmetric substiuted benzaldehydes with achiralaryldipyrromethanes in 22–40% yield. The mild conditions used enable selective incorporation of the chiral arenes at the 5,15-positions and the achiral arenes at the 10,20-positions. Due to the incorporation of the C2-symmetric chiral arenes, no atropisomers