Dibutyl methylphosphonate

The third most commonly used class of flame-retardants is phosphorus-containing compounds such as phosphoric acid esters, diphenyl cre-sylphosphate, dimethyl methylphosphonate, and dibutyl dihydroxyethyl diphosphate. They have good flame-retarding performance and are effective in small amounts. They are, however, expensive and have low hydrolysis stability. 

FIGURE 11.6 Plot of alpha values for protonated monomers of organophosphate compounds obtained at two fields of 80 (bottom) and 140 (top) Td as a function of moisture. DMMP, dimethyl-methylphosphonate TMP, trimethyl-phosphate DEMP, diethyl-methyl-phosphonate DEEP, diethyl-ethylphosphonate DIMP, di-iso-prophyl-methylphosphonate DEIP, diethyl-iso-prophylphosphonate TEP, triethyl phosphate TPP, tripropyl phosphate DBBP, dibutyl-butylphosphonate TBP, tri-n-butylphosphate. (From Krylova et al., Effect of moisture on high field dependence of mobility for gas phase ions at atmospheric pressure organophosphorus compounds, J. Phys. Chem. 2003. With permission.)... 

Diphenyl (6-methoxybenzo[d]thiazol-2-ylamlno)- Diphenyl (5-ohloro-2-hydroxyphenyl)(6-methoxy- Dibutyl (6-methoxybenzo[d]thlazol-2-(pyrldln-3-yl)methylphosphonate (48a, solid, mp benzo[d]-thiazol-2-ylamino)methylphosphonate ylamino)(pyridln-3-yl)methylphosphonate 179-181 °C, yield 81%) (48b, solid, mp183-185 °C, yield 88%) (48c, solid, mp 175-177 "C, yield 85%)... 

Dibutyl [(6-Methyl-2-oxo-2H-pyran-3-yl) Dimethyl [(5 Acetyl-6-methyl-2-oxo-2H-amlno]methylphosphonate (61a) pyran-3-yl)amino]methylphosphonale (61b)... 

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