作者:H. Gerlach、E. Huber
DOI:10.1002/hlca.19680510822
日期:1968.10.31
[n] (2,5) Pyridinophanes (I) have been synthesized by acid catalyzed cyclization of bis-(β-aminovinyl)-diketones to [n] (2,5) pyridinophan-n-ones (V), followed by WOLFF-KISHNER reduction. The conformational stability of the lower members (n < 12) of the series is shown by reduction of V to diastereomeric [n] (2,5) pyridinophan-n-ols (XI). In addition [9] (2,5) pyridinophane (I, n = 9) has been resolved
[n](2,5)吡啶并吡啶(I)是通过将双-(β-氨基乙烯基)-二酮经酸催化环化为[n](2,5)吡啶并环烷-n-(V),然后通过WOLFF合成的-减少KISHNER。通过将V还原为非对映异构体[n](2,5)吡啶并-n-醇(XI),可以显示该系列下半部分(n <12)的构象稳定性。此外,[9](2,5)吡啶并菲林(I,n = 9)已拆分为对映体。