An NMR study of sequential intermediates and collateral products in the conversion of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) to 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU)
作者:Augusto Rivera、Martín E. Núñez、Eliseo Avella、Jaime Ríos-Motta
DOI:10.1016/j.tetlet.2008.01.091
日期:2008.3
In situ 1H nuclear magnetic resonance spectroscopy was used to investigate the processes that occur during the synthesis of 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU). NMR analysis showed a reaction mixture containing more than one compound. The production of these intermediates and collateral products was rationally supported by a careful 1H NMR monitoring study. We characterized 1,3,5-triazabicyclo[3
原位1 H核磁共振波谱用于研究1,3,6,8-四氮杂三环[4.3.1.1 3,8 ]十一烷(TATU)合成过程中发生的过程。NMR分析表明反应混合物含有一种以上的化合物。仔细的1 H NMR监测研究合理地支持了这些中间体和附带产品的生产。我们用1 H表征了1,3,5-三氮杂双环[3.2.1]辛烷(TABO,4)和3-(2-氨基乙基)-1,3,5-三氮杂双环[3.2.1]辛烷(AETABO,7)D 2中的13 C NMR和13 C NMRNMR样品管内的O溶液分别作为反应的中间产物和附带产物。此外,进行了1,3,6,8-四氮杂三环[4.4.1.1 3,8 ]十二烷(TATD)与15 N-标记的氯化铵的反应。在15 ÑNMR和GC-MS实验表明15 n为并入到TATU,TABO,和乌洛托品。