Unreleak Se A
3,409,707 United States Patent Office Patented Nov. 5, 1968 1. 2 The following is a typical embodiment of equation 3,409,707 (C), above: DI THO PHOSPHORUS PHOSPHONIUMSALTS Martin Grayson, Norwalk, Patricia Tarpey Keough, Ridge 69 g 6 Na2CO3 e) 6 field, and Michael McKay Rauhut, Norwalk, Conn, as (CH3)3P CHCH, OCCH.Cl -> (CH3)3P CH=CH-Cl signors to American Cyanamid Company, Stamford, More specifically, in generic Equations A, B and C, Conn., a corporation of Maine No Drawing. Application Feb. 12, 1964, Ser. No. 344,224, above, R, R2 and R3 each represent alkyl C1-C1s, sub now Patent No. 3,299,143, dated Jan. 17, 1967, which stituted alkyl C1-C1, cycloalkyl, and aryl; X represents is a continuation of application Ser. No. 256,124, Feb. 4, halogen, such as bromo, chloro and iodo, and tetraphenyl 1963. Divided and this application Oct. 30, 1964, Ser. borate; and Y in Equations B and C represents the res No. 407,873 0 idue of an acylating agent as shown in the specific em 4 Claims. (C. 260-931) bodiments, supra. Typical tertiary phosphine reactants are the following: trimethylphosphine, tirethylphosphine, tripropylphos phine, tributylphosphine, tripentylphosphine, trihexyl ABSTRACT OF THE DISCLOSURE 5 phosphine, triheptylphosphine, trioctylphosphine, tri Phosphonium salt derivatives of the formula onylphosphine, tridecylphosphine, triundecylphosphine, S A tridodecylphosphine, tritridecylphosphine, tritetradecyl phosphine, tripentadecylphosphine, trihexadecylphos phine, dodecyldiethylphosphine, dioctylpropylphosphine, unreleakA. se 20 diethylbutylphosphine, butylethylhexylphosphine, tri(2- wherein R, R2, R, A, A and X are as hereinafter de methoxypentyl) phosphine, tris - 2 - cyanoethylphos fined. The compounds are useful as fire retardants in phine, diethyl - 2 - ethoxyheptylphosphine, tricyclo plastics.
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