M 1221 (OTTOKEMI ) Methylmagnesium chloride solution , 3.0 M in THF CAS - 676-58-4 Methylmagnesium chloride solution (3 M in THF) undergoes 1,3-addition with dialdose derived nitrones to form N-benzylhydroxylamines. The reductive cleavage of the N-O bond of these N-benzylhydroxylamines results in N-benzylaminosugars, which are key moieties of bioactive compounds.