Addition of imidazoles and aminoacids to the ethylenic bond in (η5-C5H5)Fe(CO)2(η1-N-maleimidato)

From the reaction mixture of 2-pyridyl isothiocyanate with azoimide in dioxane 5-(2-pyridyl-amino)tetrzole, 2-pyridylthiourea and elemental sulfur were isolated instead of the expected 5-(2-pyridylamino)-1,2,3,4-thiatriazole. The mechanism of the reaction mentioned was studied on the basis of the synthesis of the assumed intermediates and the isolation of the intermediates by means of compounds with an activated acetylenic or ethylenic bond.

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Activation of long chain fatty acids by subcellular fractions of rat liver: III. Effect of ethylenic bond position on acyl-CoA formation ofcis-octadecenoates

Lipids ◽

10.1007/bf02531808 ◽

1973 ◽

Vol 8 (3) ◽

pp. 124-128 ◽

Cited By ~ 15

Author(s):

K. Lippel ◽

D. Carpenter ◽

F. D. Gunstone ◽

I. A. Ismail

Keyword(s):

Fatty Acids ◽

Rat Liver ◽

Ethylenic Bond ◽

Subcellular Fractions ◽

Long Chain Fatty Acids ◽

Long Chain ◽

Chain Fatty Acids

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Activity and selectivity of a zinc catalyst in the hydrogenation of an acetylenic to an ethylenic bond

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science ◽

10.1007/bf00910805 ◽

1960 ◽

Vol 9 (4) ◽

pp. 696-700 ◽

Cited By ~ 1

Author(s):

L. Kh. Freidlin ◽

V. I. Gorshkov

Keyword(s):

Ethylenic Bond

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Participation of thecis -12 ethylenic bond tocis-trans isomerization of thecis -9 andcis -15 ethylenic bonds in heated α-linolenic acid

Journal of the American Oil Chemists Society ◽

10.1007/bf02523426 ◽

1996 ◽

Vol 73 (3) ◽

pp. 327-332 ◽

Cited By ~ 16

Author(s):

Robert L. Wolff ◽

Mohamed Nour ◽

Corinne C. Bayard

Keyword(s):

Linolenic Acid ◽

Ethylenic Bond ◽

Trans Isomerization

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Quantitative effects of unsaturated fatty acids in microbial mutants. VI. Selective growth responses of yeast and bacteria to cis-octadecenoate isomers

Canadian Journal of Biochemistry ◽

10.1139/o76-105 ◽

1976 ◽

Vol 54 (8) ◽

pp. 736-745 ◽

Cited By ~ 11

Author(s):

John B. Ohlrogge ◽

Eugene D. Barber ◽

William E. M. Lands ◽

F. D. Gunstone ◽

I. A. Ismail

Keyword(s):

Fatty Acids ◽

Unsaturated Fatty Acids ◽

Ethylenic Bond ◽

Yeast Cells ◽

Nutritional Requirement ◽

Bacterial Cells ◽

Growth Responses ◽

Cellular Lipids ◽

Acyl Chains ◽

Extensive Growth

The full series of positional isomers of cis-octadecenoate were tested for their suitability in meeting the nutritional requirement for unsaturated fatty acids by mutants of Escherichia coli and Saccharomyces cerevisiae that were unable to synthesize unsaturated fatty acids.Quantitative comparisons of the efficiencies of the various isomers showed a range from 0–48 cells per femtomole for the prokaryotic cells and 0–5 for eukaryotic cells. The Δ5 isomer was much more effective than the Δ6 isomer with the bacterial cells whereas the reverse was true with the yeast cells. In general, isomers containing a cis ethylenic bond between carbons 7 and 12 were able to support extensive growth of either type of mutant.Since all of the various isomers were incorporated into cellular lipids by both types of microorganism, the different efficiencies observed in supporting growth were not a simple reflection of the inability of an acid to be esterified. The differences may reflect the suitability of the resultant esterified product to function as a normal membrane lipid.The contents of various fatty acids in the cellular phospholipids when growth ceases may have a linearly cumulative relationship to the degree of expansion of the acyl chains.

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