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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

The preparation of certain esters of 2-thiophene carboxylic acid

Cottrell, Bert Maxwell 05 1900 (has links)
No description available.
62

The kinetics and mechanism of solvolysis of some phosphate esters of tertiary alcohols

Newton, Melvin Gary 08 1900 (has links)
No description available.
63

Bridged analogs of N-benzoyl phenylalanine esters : synthesis and interactions with proteases

Elie, Patrick January 1977 (has links)
No description available.
64

Wax ester biosynthesis in a calanoid copepod, Calanus finmarchicus and a fresh-water teleost, Trichogaster trichopterus

Russell, Y. January 1987 (has links)
The <i>de novo</i> formation of long-chain fatty acids and the reduction of long-chain fatty acids to the corresponding fatty alcohol were studied in the calanoid copepod <i>Calanus finmarchicus (Calanus</i>) and the fresh-water fish, <i>Trichogaster trichopterus</i> (the gourami). <i>De novo</i> biosynthesis of fatty acids by the enzyme fatty acid synthase (FAS) was localised in the 6.3 x 10<sup>6</sup>g-min supernatant ('cytosolic' fraction) of homogenates of whole <i>Calanus</i> and was characteristic of a Type 1 multienzyme complex. The formation of fatty acids required the presence of acetyl-CoA, malonyl-CoA and was specific for NADPH as the reductant. The main products of the reaction were the saturated long-chain fatty acids stearic acid and palmitic acid, accounting for 54% and 25% of the total fatty acid product, respectively. The alcohol-forming enzyme, NADPH-fatty acyl-CoA oxidoreductase, from both <i>Calanus</i> the gourami roe was membrane-associated. Differential ultracentrifugation showed that a 6.3 x 10<sup>6</sup>g-min pellet (the 'particulate' fraction) was most active in the formation of long-chain fatty acohols. The specific activity of the enzyme in the gourami roe particulate fraction was over 100-fold higher than that in the <i>Calanus</i> particulate fraction. Both systems required the presence of an acyl-CoA generating system in the form of exogenous CoASH, ATP and Mg<sup>++</sup>. The reaction was specific for NADPH as the reductant in the case of the gourami roe system. However, NADH substituted for NADPH in the <i>Calanus</i> system. Palmitic acid, in the presence of an acyl-CoA generating system, was the most effective substrate with the 18:0, 18:1 and 22:1 substrates giving progressively lower activities.
65

Hydrolysis mechanisms for iminosulphonate esters and fluorene esters

Said, M. S. January 1985 (has links)
No description available.
66

Identification studies of a quinyl-coumarate in the pineapple plant.

Sutherland, Graham 02 1900 (has links)
Typescript. Thesis (Ph. D.)--University of Hawaii, 1958. Bibliography: leaves [75]-79.
67

Novel approaches toward the synthesis of bis(2,2,2-trifluroethoxy) phosphono esters /

Carlisle, Lemuel R., January 2007 (has links)
Thesis (M.S.)--Youngstown State University, 2008. / Also available online via OhioLINK's ETD Center.
68

The difference in chemical behavior of free and combined water as illustrated by the saponification of esters ...

Holmes, James Eugene Levering, January 1915 (has links)
Thesis (Ph. D.)--Johns Hopkins University, 1915. / Biography.
69

The behaviors of sodium and of sodium alcoholates towards various esters of acetic acid ...

Higley, Louis Allen. January 1907 (has links)
Thesis (PH. D.)--University of Chicago. / From American chemical journal, vol. 37, p. [293]-324. Also available on the Internet.
70

Hydroboration-oxidation of styrene, 2,3-dihydrofuran and quadricyclene dimethylester promoted by Wilkinson's catalyst /

Feng, Pingyun. January 1991 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1991. / Includes bibliographical references.

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