51805-41-5Relevant academic research and scientific papers
Process for the preparation of bis-(β-carboxyethyl)alkyl phosphine oxides from tris-cyanoethyl phosphine
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, (2008/06/13)
Lower alkyl bis-(β-carboxyethyl) phosphine oxides are prepared from tris-cyanoethyl phosphine in a functionally coordinated sequentially ordered process comprising alkylating the tris-cyanoethyl phosphine to a phosphonium salt, dequarternizing the phosphonium salt to a lower alkyl bis-(β-cyanoethyl) phosphine, oxidizing the phosphine to phosphine oxide, hydrolyzing the phosphine oxide with calcium hydroxide to produce a calcium salt of lower alkyl bis-(β-carboxyethyl) phosphine oxide, and acidifying the calcium salt to produce lower alkyl bis-(β-carboxyethyl) phosphine oxide.
Process for the preparation of bis-(β-carboxyethyl) alkyl phosphine oxides from bis-(β-cyanoethyl) alkyl phosphine
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, (2008/06/13)
Lower alkyl bis-(β-carboxyethyl) phosphine oxides are prepared from lower alkyl bis-(β-cyanoethyl) alkyl phosphine by oxidizing the phosphine to cyanoethyl phosphine oxide, hydrolyzing the cyanoethyl phosphine oxide with calcium hydroxide to produce a calcium salt of lower alkyl bis-(β-carboxyethyl) phosphine oxide, and acidifying the calcium salt to produce lower alkyl bis-(β-carboxyethyl) phosphine oxide.
Process for the preparation of bis-(beta-cyanoethyl) alkyl phosphine from tris-cyanoethyl phosphine
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, (2008/06/13)
Lower alkyl bis-(β-cyanoethyl) phosphines are prepared from tris-cyanoethyl phosphine by alkylating tris-cyanoethyl phosphine to a phosphonium salt, and dequarternizing the phosphonium salt to a lower alkyl bis-(β-cyanoethyl) phosphine.
