Diorganomagnesium reagents and methods of preparing same

Abstract

Abstract DIORGANOMAGNESIUM REAGENTS ARE PREPARED BY PROCESSES WHICH SEPARATE HALIDES ARE INSOLUBLE SALTS FROM MAGNESIUM REAGENTS. THE PROCESSES ARE CONVENIENT AND PRACTICAL AND PROVIDE DIORGANOMAGNESIUM COMPOUNDS AND DERIVATIVES AS SOLIDS OR IN SOLUTION WITH OR WITHOUT SOLVATION; THE PROCESSES HAVE PROVIDED NEW DIORGANOMAGNESIUM COMPOUNDS AND DERIVATIVES AND SOLUTIONS OF DIORGANOMAGNESIUM COMPOUNDS NEVER PREVIOUSLY OBTAINED. ONE PRINCIPAL PROCESS BY WHICH THE SEPARATION IS ACCOMPLISHED IS PRECIPITATION OF THE SALT LITHIUM HALIDE FROM REACTION OF AN ORGANOLITHIUM REAGENT WITH AN ORGANOMAGNESIUM HALIDE OR WITH A MAGNESIUM HALIDE. A SECOND PROCESS DEVELOPED FOR SEPARATION OF HALIDE FROM A MAGNESIUM REAGENT INVOLVES FORMATION TO THE SALT MAGNESIUM HALIDE FROM AN ORGANOMAGNESIUM HALIDE IN A MEDIUM THAT WILL NOT DISSOLVE THE SALT. A THIRD PROCESS INVOLVES REACTION OF MAGNESIUM DIRECTLY WITH AN ORGANIC HALIDE UNDER CONDITIONS THAT PRODUCE A MIXTURE OF MAGNESIUM HALIDE AND DIORGANOMAGNESIUM COMPOUNDS, THE LATTER OF WHICH CAN BE DISSOLVED INTO SUITABLE SOLVENTS LEAVING THE HALIDE AS INSOLUBLE SALT.

Inventors

• 👤 C Kamienski
• 👤 J Eastham

Bibliographic Details