N,N'-Dimethylurea → Tetrakis(1,3-dimethylureidomethyl)phosphonium iodide
Reaction equation
[I-:1].O[CH2:3][P+:4]([CH2:9]O)([CH2:7]O)[CH2:5]O.[CH3:11][NH:12][C:13]([NH:15][CH3:16])=[O:14]>C1(C)C=CC=CC=1>[I-:1].[CH3:11][N:12]([CH2:9][P+:4]([CH2:3][N:12]([CH3:11])[C:13]([NH:15][CH3:16])=[O:14])([CH2:5][N:12]([CH3:11])[C:13]([NH:15][CH3:16])=[O:14])[CH2:7][N:12]([CH3:11])[C:13]([NH:15][CH3:16])=[O:14])[C:13]([NH:15][CH3:16])=[O:14]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Reaction of tetrakis(hydroxymethyl)phosphonium iodide (7.05 g, 0.025 mol) with 1,3-dimethylurea (8.81 g, 0.1 mol) in toluene (25 ml), following Example 1, gave 13.65 g (97.1%) of tetrakis(1,3-dimethylureidomethyl)phosphonium iodide (I, R=R'=CH3, R"=H, X=I) as a white, crystalline solid, mp 194° C. dec after two recrystallizations from ethanol (10 ml/g). The product suffered no weight loss when dried under vacuum for 2 hr at 100° C.