Phosphonium and imidazolium salts and methods of their preparation

Phosphonium and imidazolium salts and methods of their preparation

  • CN 1,675,230 B
  • Filed: 08/08/2003
  • Issued: 07/18/2012
  • Est. Priority Date: 08/16/2002
  • Status: Active Grant
First Claim
Patent Images

1. has general molecular formula (I) Q +X -Compound, Wherein,Q +Be

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