text: Early transition metal amides may be prepared by treating anhydrous metal chloride with alkali amide reagents.  In some cases, two equivalents of a secondary amine can be used, one equivalent serving as a base:
  :MCl + n LiNR → M(NR) + n LiCl
  :MCl + 2n HNR → M(NR) + n HNR·HCl
  Transition metal amide complexes have been prepared by these methods:
  * treating a halide complex with an alkali amide
  * deprotonation of a coordinated amine
  * oxidative addition of an amine