Premium
The preparation and properties of some synthetic glycerides. I. Procedures to Minimize contaminants in intermediates and constituent fatty acids
Author(s) -
Jackson J. E.,
Lundberg W. O.
Publication year - 1963
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/bf02633690
Subject(s) - glyceride , chemistry , glycerol , melting point , organic chemistry , solubility , zinc , fatty acid
The preparation of 1‐monotritylglycerol and the debromination of tetrabromostearic acid have been modified to increase the purity of glycerides synthesized by procedures involving these two compounds. Solubility and melting point data showed that ditritylglycerol, formed as a by‐product in the reaction between trityl chloride and glycerol, is not readily separable from monotritylglycerol, and its presence is difficult to detect unless special melting point methods are used. To minimize formation of ditritylglycerol, large excesses of glycerol were used in the preparation of monotritylglycerol. In the preparation of linoleic acid from tetrabromostearic acid, formation of trans double bonds was reduced to a minimum by increasing the amount of mineral acid used to promote the debromination with zinc dust.