Abstract WHEREIN R is alkyl of 1-8 carbon atoms or mononuclear aryl, R1, R2 and R, are hydrogen or lower alkyl, R4 is hydrogen, lower alkyl, phenyl or alkylphenyl, Q is oxygen or sulfur, m is 1 or zero and n is 1 or 2 and salts thereof are provided. They are effective depilatories and unhairing accelerators and can also be used as lubricating oil antioxidants and as flame retardants in plastics and textiles. They are prepared by reacting an appropriately substituted 3-aminopropylphosphine with a dialkyl or diaryl disulfide. Sulfides and oxides are produced by heating 1,2-azaphospholanes contained triavalent phosphorus with sulfur or oxygen or by using 3-aminopropylphosphine sulfides or oxides as starting materials. 1,2-Azaphospholanes and their 2-oxides and 2-sulfides having the formula
A 1,2-AZAPHOSPHOLANE COMPOUND OR SALTS, CONSISTING OF A. A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
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A 1,2-AZAPHOSPHOLANE COMPOUND OR SALTS, CONSISTING OF A. A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
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An azaphospholane compound or salt defined by claim 1 wherein R1, R2 and R3 are hydrogen.
Claim 4
Dependent Claim
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An azaphospholane compound or salt defined by claim 2 wherein R4 is hydrogen.
Claim 5
Dependent Claim
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An azaphospholane salt defined by claim 3 wherein n is 2.
Claim 6
Dependent Claim
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An azaphospholane salt defined by claim 3 wherein n is 1.
Claim 7
Dependent Claim
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An azaphospholane compound defined by claim 3 wherein m is zero and R is alkyl.
Claim 8
Dependent Claim
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A method of producing a 1,2-azaphospholane compound or salt defined by claim 1 which comprises the step of ring-closing an aminopropylphosphine selected from the group consisting of (a) 3-aminopropylphosphines of the forMula