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Preparation of long‐chain fatty acid chlorides
Author(s) -
Youngs C. G.,
Epp A.,
Craig B. M.,
Sallans H. R.
Publication year - 1957
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02640442
Subject(s) - phosphorus pentachloride , chemistry , phosphorus trichloride , organic chemistry , distillation , yield (engineering) , vacuum distillation , fatty acid , solvent , inert , inert gas , chromatography , materials science , metallurgy
Summary A rapid method has been found for preparing the long‐chain fatty acid chlorides, which eliminates purification by distillation. It gave a quantitative yield of product containing less than 1.5% free acid. The method involves treating the free acid with phosphorus pentachloride or trichloride in an inert organic solvent and removing the excess chlorinating agent by washing the solvent phase with water. Phosphorus pentachloride and Skellysolve “F” were preferred for laboratory preparations. For commercial purposes however either chlorinating agent could be used in a variety of inert organic solvents. Infrared analysis was found to give a rapid measure of the free acid content of the prepared acid chlorides.