Microwave-assisted cyclizations promoted by polyphosphoric acid esters: a general method for 1-aryl-2-iminoazacycloalkanes
作者:Jimena E Díaz、María C Mollo、Liliana R Orelli
DOI:10.3762/bjoc.12.190
日期:——
omega-arylaminonitriles promoted by polyphosphoricacid (PPA) esters. 1-Aryl-2-iminopyrrolidines were easily prepared from the acyclic precursors employing a chloroformic solution of ethyl polyphosphate (PPE). The use of trimethylsilyl polyphosphate (PPSE) in solvent-free conditions allowed for the synthesis of 1-aryl-2-iminopiperidines and hitherto unreported 1-aryl-2-iminoazepanes. The cyclization reaction involves
1,n-Diamines. Part 2: Synthesis of acyclic and heterocyclic N-arylputrescine derivatives
作者:Jimena E. Díaz、Juan Á. Bisceglia、Ma. Cruz Mollo、Liliana R. Orelli
DOI:10.1016/j.tetlet.2011.02.042
日期:2011.4
and related seven-membered heterocyclic amidines 4. Compounds 1 were synthesized by Cs2CO3/KI-mediated aminolysis of 4-chlorobutyronitrile and subsequent reduction. N-Acylation of diamines 1 with carboxylic acid anhydrides led selectively to N-acyl-N′-aryl tetramethylenediamines 3. Microwave-assisted ring closure of such precursors promoted by PPE allowed for the synthesis of hitherto unreported 1-aryl-2-alkyl-1H-1
在本函中,我们报道了使用N-芳基腐胺作为合成中间体,用于制备N-酰基-N'-芳基四亚甲基二胺3和相关的七元杂环am 4。通过Cs 2 CO 3 / KI介导的4-氯丁腈的氨解并随后还原来合成化合物1。二胺1与羧酸酐的N-酰化选择性地导致N-酰基-N'-芳基四亚甲基二胺3。由PPE促进的此类前体的微波辅助闭环反应允许合成迄今未报道的1-芳基-2-烷基-1 H -1,4,5,6-四氢-1,3-二氮杂4。
An Efficient Synthesis of<i>N</i>-Alkyl-<i>N</i>-arylputrescines and Cadaverines
作者:María C. Mollo、Nadia Gruber、Jimena E. Díaz、Juan Á. Bisceglia、Liliana R. Orelli
DOI:10.1080/00304948.2014.944404
日期:2014.9.3
Fibrin-stabilizing factor inhibitors. 5. Primary amines related to monotosylcadaverine
作者:Pal Stenberg、Christine Ljunggren、J. L. G. Nilsson、Ragnar Lunden、Olle Eriksson