1979
DOI: 10.1007/bf02667449
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Nitrogen derivatives (Amides, diamides, nitriles, primary amines and oxides)

Abstract: Without a doubt the nitrogen derivatives are the most broadly diversified family of fatty acid derivatives. Today they account collectively for perhaps 400 million pounds of products per year in the USA alone. Although fatty amides may be produced by a large number of synthetic routes, industrially only two are of any commercial importance. Diamides are the difunctional analogs of simple amides, and a typical one that is in medium scale production volume is ethylene bis(stearamide). Industrially, the productio… Show more

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Cited by 9 publications
(4 citation statements)
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“…However, its temperature increased as the chainlength increased. This is in keeping with most observations made on fatty acids and their derivatives (16)(17)(18)(19)(20)(21)24,25). This endotherm may represent a phase change, which in turn might indicate that the compounds are liquid crystals (10).…”
Section: Experimental Procedures Resultssupporting
confidence: 87%
See 1 more Smart Citation
“…However, its temperature increased as the chainlength increased. This is in keeping with most observations made on fatty acids and their derivatives (16)(17)(18)(19)(20)(21)24,25). This endotherm may represent a phase change, which in turn might indicate that the compounds are liquid crystals (10).…”
Section: Experimental Procedures Resultssupporting
confidence: 87%
“…The melting points (second endotherms in Table 1) of the long-chain symmetrical bis-alkanamides of EDA decreased from 166.3~ (C 9 alkanoyl) to 143.4~ (C20 a!kanoyl) as the carbon chainlength and the RMM increased. This was another paradoxical observation that would not be expected from the melting points of the saturated straight-chain fatty acids (17), fatty acid methyl esters (18), fatty acid esters of glycerol (19), fatty acid amines (21), and most of their other derivatives, which all increase with increasing chainlength. However, similar depressions of melting temperatures with increasing carbon number have been reported for the 2-alkyl- benzimidazoles (22) and the bis-amides of 4,4'-diaminodiphenylmethane (23).…”
Section: Experimental Procedures Resultsmentioning
confidence: 99%
“…samples pyrolyzed at 420 °C. It is possible that N-derivatives of fatty acids were formed as a result of reactions of the free fatty acids (produced in this step due to breakdown of triglycerides) with polymerized (charred) proteins from the previous pyrolysis step . Since fatty nitriles have been considered as fuel additives to improve lubricating properties, the presence of these compounds at low concentrations may, in fact, enhance the fuel value of triglyceride-derived bio-oil from pyrolytic fractionation.…”
Section: Resultsmentioning
confidence: 99%
“…It is possible that N-derivatives of fatty acids were formed as a result of reactions of the free fatty acids (produced in this step due to breakdown of triglycerides) with polymerized (charred) proteins from the previous pyrolysis step . Since fatty nitriles have been considered as fuel additives to improve lubricating properties, the presence of these compounds at low concentrations may, in fact, enhance the fuel value of triglyceride-derived bio-oil from pyrolytic fractionation. Trace amounts of toluene and 4-methylphenol were also observed in the triglyceride-derived bio-oils from both the oleaginous algal feedstocks and could have formed from degradation of recalcitrant or charred proteins.…”
Section: Resultsmentioning
confidence: 99%