Phosphorus–nitrogen compounds. Part 54. The reactions of geminal N3P3(NH2)2Cl4 and of N3P3(NH2)Cl5 with alkoxide ions in alcohols. The geminal P(NH2)2 to non-geminal P(NH2)(OR) rearrangement. The crystal structures of trans-N3P3(NH2)2(OPrn)4, cis-N3P3(NH2)2(OMe)4, and geminal N3P3(NH2)2(OMe)4

Abstract

Geminal N₃P₃(NH₂)₂Cl₄ has been allowed to react with alkoxide ions in alcohol to give rearranged cis- and trans-N₃P₃(NH₂)₂(OR)₄(R = Me, Et, Prⁿ, or Buⁿ), as well as unrearranged geminal N₃P₃(NH₂)₂(OR)₄(R = Me). The ¹H, ¹³C, and ³¹P n.m.r. spectra are reported. The crystal structures of trans-N₃P₃(NH₂)₂(OPrⁿ)₄, geminal and cis-N₃P₃(NH₂)₂(OMe)₄ are presented, the last two being present in a 1 : 1 ratio in the same unit cell.