Novel Syntheses of <i>N</i>-Pivot Lariat Diaza-Crown Ethers from 4,13-Bis(benzotriazolylmethyl)-4,13-diaza-1,7,10,16-tetraoxacyclooctadecane
作者:Alan R. Katritzky、Sergei A. Belyakov、Alexander E. Sorochinsky、Peter J. Steel、Otto F. Schall、George W. Gokel
DOI:10.1021/jo961099o
日期:1996.1.1
lmethyl)-4,13-diaza-1,7,10,16-tetraoxacyclooctadecane (6) was synthesized as a versatile intermediate in the preparation of bis(lariats) of diaza-18-crown-6. N,N'-Bis(umbelliferon-8-ylmethyl) derivative 8, bis(lariats) with terminal unsaturated groups (11c,e), ester functionalities (11d), N,N'-di-beta-aralkyl derivatives (11a,b), and gamma-oxy-substituted (13, 14) and gamma-amino-substituted (17-19)
合成了4,13-双(苯并三唑基甲基)-4,13-二氮杂-1,7,10,16-四氧杂环十八烷(6),作为制备diaza-18-crown-6的双(lariats)的通用中间体。N,N'-双(伞形-8甲基)衍生物,带有末端不饱和基团(11c,e)的双(lariats),酯官能团(11d),N,N'-di-β-芳烷基衍生物(11a, b),从而以中等至优异的产率制备了γ-氧基取代的(13、14)和γ-氨基取代的(17-19)的丙烯侧臂衍生物。讨论了双(lariat)6的X射线结构以及双(lariats)(6的衍生物)与金属阳离子的几种配合物的稳定性常数。