The Influence of Ring Size on the Selectivity of Phosphorus Heterocycle Aminolysis in the Presence of Water or Alcohols – Case of 2-Oxo- or 2-Thioxo-3-sulfonyl-1,3,2-oxazaphosphorinanes
作者:Frédéric Dujols、Michel Mulliez
DOI:10.1002/ejoc.200500743
日期:2006.4
dichlorides 3 with N-sulfonyl-3-aminopropanols 4. In the presence of water, they react selectively with the less bulky amines. No change in selectivity of aminolysis was observed when using these six-membered heterocycles 2 instead of their five-membered analogs 1. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
通过将 PIV 二氯化物 3 与 N-磺酰基-3-氨基丙醇 4 缩合,一步合成了七个磷杂环 2。在水的存在下,它们选择性地与体积较小的胺反应。当使用这些六元杂环 2 而不是它们的五元类似物 1 时,没有观察到氨解选择性的变化。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)