Ethyl-, vinyl- and ethynylcyanoborates: Room temperature borate ionic liquids with saturated and unsaturated hydrocarbon chains

2022 ◽  
Author(s):  
Nils Schopper ◽  
Ludwig Zapf ◽  
Jan Arke Peter Sprenger ◽  
Nikolai Ignat'ev ◽  
Maik Finze
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Unsaturated Hydrocarbon ◽  
Ethyl Vinyl ◽  
Hydrocarbon Chains ◽  
Unsaturated Hydrocarbon Chains ◽  
Potassium Trifluoroborates

Ethyl-, vinyl- and ethynyltricyano and dicyanofluoroborates were prepared on gram scale from commercially available potassium trifluoroborates and trimethylsilylcyanide. Salt metathesis resulted in the corresponding EMIm-salts that are hydrophobic room-temperature ionic...

scholarly journals Alkylresorcinols in rye (Secale cereale L.) grains. V. Chromatographic analysis of 5-n-alk(en)ylresorcinols during their preparation

2014 ◽  
Vol 50 (4) ◽  
pp. 637-643 ◽  
Author(s):  
Arkadiusz Kozubek ◽  
Franciszek Tłuścik ◽  
Wanda Mejbaum-Katzenellenebogen
Keyword(s):  
Silica Gel ◽  
Secale Cereale ◽  
Chromatographic Analysis ◽  
Saturated Hydrocarbon ◽  
Unsaturated Hydrocarbon ◽  
Hydrocarbon Chains ◽  
Secale Cereale L ◽  
Unsaturated Hydrocarbon Chains

Analysis of 5-n-alk(en)ylresorcinols during the coarse of their preparation from rye grains showed that changes of the composition of 5-n-alkylresorcinol homologues in acetone oil; raw preparation, and alkylresorcinol fraiction obtained after chromatography on silica gel, were insignificant. About 20% of alk(en)-ylresorcinals were washed out from acetone oil with pentane. Over 50% of alk(en)ylresorcinols eluted by pentane constituted homologues with unsaturated hydrocarbon chains (5-n-alkenylresorcinols). Preparation obtained after chromatagraphic separation constituted a mixtureof 5-n-alk(en)ylresorcinols width saturated hydrocarbon chains (5-n-alkylresorcinols).

Toward Quantitative Sequencing of Deuteration of Unsaturated Hydrocarbon Chains in Fatty Acids

2021 ◽  
Author(s):  
Dong Hao Wang ◽  
Hui Gyu Park ◽  
Zhen Wang ◽  
R. J. Scott Lacombe ◽  
Vadim V. Shmanai ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Unsaturated Hydrocarbon ◽  
Hydrocarbon Chains ◽  
Unsaturated Hydrocarbon Chains

Development of the room temperature protocol based on room temperature ionic liquids and surfactant ionic liquids for the synthesis of derivatives of 2-amino-thiazoles and thermo-physical analysis of the synthesized derivatives using TGA-DSC.

2020 ◽  
Vol 10 ◽  
Author(s):  
Chandrakant Sarode ◽  
Sachin Yeole ◽  
Ganesh Chaudhari ◽  
Govinda Waghulde ◽  
Gaurav Gupta
Keyword(s):  
Thermal Analysis ◽  
Heat Capacity ◽  
Ionic Liquids ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Room Temperature ◽  
Heat Capacity Data ◽  
General Strategy ◽  
Capacity Data ◽  
Derivatives Of

Aims: To develop an efficient protocol, which involves an elegant exploration of the catalytic potential of both the room temperature and surfactant ionic liquids towards the synthesis of biologically important derivatives of 2-aminothiazole. Objective: Specific heat capacity data as a function of temperature for the synthesized 2- aminothiazole derivatives has been advanced by exploring their thermal profiles. Method: The thermal gravimetry analysis and differential scanning calorimetry techniques are used systematically. Results: The present strategy could prove to be a useful general strategy for researchers working in the field of surfactants and surfactant based ionic liquids towards their exploration in organic synthesis. In addition to that, effect of electronic parameters on the melting temperature of the corresponding 2-aminothiazole has been demonstrated with the help of thermal analysis. Specific heat capacity data as a function of temperature for the synthesized 2-aminothiazole derivatives has also been reported. Conclusion: Melting behavior of the synthesized 2-aminothiazole derivatives is to be described on the basis of electronic effects with the help of thermal analysis. Additionally, the specific heat capacity data can be helpful to the chemists, those are engaged in chemical modelling as well as docking studies. Furthermore, the data also helps to determine valuable thermodynamic parameters such as entropy and enthalpy.

scholarly journals Structure and dynamics of room temperature ionic liquids with bromide anion: results from 81 Br NMR spectroscopy

2015 ◽  
Vol 53 (5) ◽  
pp. 369-378 ◽  
Author(s):  
Takatsugu Endo ◽  
Mamoru Imanari ◽  
Yuki Hidaka ◽  
Hiroko Seki ◽  
Keiko Nishikawa ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Nmr Spectroscopy ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids ◽  
Bromide Anion ◽  
Structure And Dynamics
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