Carbodithioic Acid Esters

2005 ◽  
pp. 181-225 ◽  
Author(s):  
Akihiko Ishii ◽  
Juzo Nakayama
Keyword(s):  
Acid Esters

1832-P: Palmitic Acid Esters of Hydroxy Stearic Acids Reduce Endogenous Glucose Production through GPR43 Activation

Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 1832-P
Author(s):  
ANNA SANTORO ◽  
PENG ZHOU ◽  
YAN ZHU ◽  
ODILE D. PERONI ◽  
ANDREW T. NELSON ◽  
...  
Keyword(s):  
Palmitic Acid ◽  
Glucose Production ◽  
Endogenous Glucose Production ◽  
Endogenous Glucose ◽  
Acid Esters

Ketones from Nickel-Catalyzed Decarboxylative, Non-Symmetric Cross-Electrophile Coupling of Carboxylic Acid Esters

2019 ◽  
Author(s):  
Jiang Wang ◽  
Brian P. Cary ◽  
Peyton Beyer ◽  
Samuel H. Gellman ◽  
Daniel Weix
Keyword(s):  
Carboxylic Acid ◽  
Solid Support ◽  
Reaction Conditions ◽  
Decarboxylative Coupling ◽  
New Strategy ◽  
The Cross ◽  
Acyl Donors ◽  
Acid Esters

A new strategy for the synthesis of ketones is presented based upon the decarboxylative coupling of N-hydroxyphthalimide (NHP) esters with S-2-pyridyl thioesters. The reactions are selective for the cross-coupled product because NHP esters act as radical donors and the thioesters act as acyl donors. The reaction conditions are general and mild, with over 40 examples presented, including larger fragments and the 20-mer peptide Exendin(9-39) on solid support.

Determination of phthalic acid esters in imitation jewellery and investigation of their migration risk

2013 ◽  
Vol 30 (7) ◽  
pp. 647-653 ◽  
Author(s):  
Ying LAI ◽  
Zongping HUANG ◽  
Xiuxiu GE ◽  
Rui LIN ◽  
Hexiu CHEN
Keyword(s):  
Phthalic Acid ◽  
Phthalic Acid Esters ◽  
Acid Esters

Development of the determination methods of fatty acid esters of chloropropanediols in fat-rich foods

2014 ◽  
Vol 31 (2) ◽  
pp. 95-101
Author(s):  
Xiaobo YAN ◽  
Shaoming WU ◽  
Nan LI ◽  
Huadong LV ◽  
Wusheng FU
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Esters ◽  
Determination Methods ◽  
Acid Esters

Bionanomaterials: Thermal Stability of the Oleic Acid / alpha- and beta-cyclodextrin Complexes

2008 ◽  
Vol 59 (9) ◽  
Author(s):  
Daniel I. Hadaruga ◽  
Nicoleta G. Hadaruga ◽  
Anca Hermenean ◽  
Adrian Rivis ◽  
Vasile Paslaru ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Oleic Acid ◽  
Solution Method ◽  
Degradation Products ◽  
Water Solution ◽  
Fatty Acid Esters ◽  
Cyclodextrin Complexes ◽  
Free Oleic Acid ◽  
Thermal Stability Of ◽  
Acid Esters

This paper presents the thermal stability of the oleic acid encapsulated in a- and b - cyclodextrin. The complexation of the oleic acid was achieved by the ethanol-water solution method and the nanoparticles were analyzed by DSC. The free oleic acid and the encapsulated one were subjected to the thermal degradation in the range of 50-150�C and the degradation products were identified and quantified by GC-MS analysis of the fatty acid esters obtained by deriving with methanol/boron trifluoride, both for free compounds and for the encapsulated ones. The oleic acid complexes were very stable in this range of temperature.

Chemodynamics, transport behaviour and treatment of phthalic acid esters in municipal landfill leachates

1998 ◽  
Vol 38 (2) ◽  
pp. 185-192 ◽  
Author(s):  
M. J. Bauer ◽  
R. Herrmann ◽  
A. Martin ◽  
H. Zellmann
Keyword(s):  
Particulate Matter ◽  
Aquatic Environment ◽  
Phthalic Acid ◽  
Phthalic Acid Esters ◽  
Landfill Leachates ◽  
Transport Behaviour ◽  
Ethylhexyl Phthalate ◽  
Dissolved Phase ◽  
Acid Esters ◽  
Long Chain

Large amounts of phthalic acid esters (PAEs) are leached from plastics dumped at municipal landfills. This leachate transports PAEs either adsorbed on particulate matter or in dissolved phase. Dissolved organic macromolecules, mainly humic-like substances, enhance the solubility of PAEs. In the biochemical environments of municipal landfills short chain PAEs can be degraded by base-catalyzed hydrolysis or by microorganisms which enzymatically split the side chains. However, there is no cleavage of the aromatic ring. Long chain PAEs like di-(2-ethylhexyl) phthalate are neither degraded abiotically nor by microorganisms. Hence, these PAEs can be leached and washed out of leaky landfills into the groundwater and thus continue to be a threat to the aquatic environment. Only a combined UV radiation/ozonation treatment is capable of fully destroying PAEs.

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