作者:Alan R. Katritzky、Konstantina Yannakopoulou、Hengyuan Lang
DOI:10.1039/p29940001867
日期:——
Reactions of N-(α-benzotriazolylalkyl)-N,N-dialkylamines with the dialkylamine corresponding to the dialkylamino substituent afford symmetrical aminals in good yields. Treatment with other dialkylamines gives mixtures of the unsymmetrical and the two symmetrical aminals. Cross-over experiments of symmetrical aminals demonstrates interconversions involving iminium ions and that equilibria exist in the