Third-generation ionic liquids with N-alkylated 1,4-diazabicyclo[2.2.2]octane cations and pelargonate anions

Novel ionic liquids with cations based on alkyl derivatives of 1,4-diazabicyclo[2.2.2]octane (DABCO) and an anion derived from naturally occurring pelargonic acid possessed double biological functions: herbicidal and deterrent activity.

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THE PYROLYSIS OF CAROTENE

Canadian Journal of Research ◽

10.1139/cjr48b-075 ◽

1948 ◽

Vol 26b (10) ◽

pp. 728-733 ◽

Cited By ~ 6

Author(s):

R. Norman Jones ◽

R. W. Sharpe

Keyword(s):

Aromatic Hydrocarbons ◽

Polynuclear Aromatic Hydrocarbons ◽

Carotenoid Pigments ◽

Carcinogenic Activity ◽

Naturally Occurring ◽

Methods Of Analysis ◽

Alkyl Derivatives ◽

Derivatives Of

Kuhn and Winterstein reported the isolation of 2,6-dimethylnaphthalene from the products of pyrolysis of carotenoid pigments. The production of alkyl derivatives of phenanthrene and chrysene by the same type of cyclization can readily be formulated. The production of such hydrocarbons by the action of heat on naturally occurring substances, which include common constituents of foodstuffs would be of significance since such compounds might exhibit carcinogenic activity. Fractionation of the products of carotene pyrolysis confirmed the formation of 2,6-dimethylnaphthalene, but no more complex polynuclear aromatic hydrocarbons were isolated. The methods of analysis employed should have permitted the detection of such compounds in amounts considerably below 1%.

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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.

Current Physical Chemistry ◽

10.2174/1877946810999200519102040 ◽

2020 ◽

Vol 10 ◽

Cited By ~ 1

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.

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7-O-Alkyl derivatives of daunomycinone

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19840313 ◽

1984 ◽

Vol 49 (1) ◽

pp. 313-319 ◽

Cited By ~ 4

Author(s):

Věra Přikrylová ◽

Petr Sedmera ◽

Josef V. Jizba ◽

Jindřich Vokoun ◽

Helena Lipavská ◽

...

Keyword(s):

H Nmr ◽

Toluenesulfonic Acid ◽

Alkyl Derivatives ◽

Derivatives Of

Reaction of daunomycinone (I) with alcohols and p-toluenesulfonic acid produces a mixture (~3 : 1) of its (7S)- and (7R)-O-alkyl derivatives II-IX. According to the 1H NMR evidence, the alicyclic ring exists in the 9H8 conformation in (7R)-O-alkyl derivatives, on the contrary to (7S)-epimers and 7-epi-daunomycinone that adopt the 8H9 conformation.

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Polarized fluorescense of alkyl derivatives of fluorescein, MitoFluo and C8-Fl, in solutions with liposomes

2020 International Conference Laser Optics (ICLO) ◽

10.1109/iclo48556.2020.9285751 ◽

2020 ◽

Author(s):

D.M. Beltukova ◽

V.P. Belik ◽

Y.N. Antonenko ◽

A.A. Bogdanov ◽

G.A. Korshunova ◽

...

Keyword(s):

Alkyl Derivatives ◽

Derivatives Of

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Synthesis and reactivity of halide, hydride, and alkyl derivatives of (pentamethylcyclopentadienyl)(bisphosphine)iron(II)

Organometallics ◽

10.1021/om00115a038 ◽

1990 ◽

Vol 9 (1) ◽

pp. 260-265 ◽

Cited By ~ 20

Author(s):

Rocco A. Paciello ◽

Juan M. Manriquez ◽

John E. Bercaw

Keyword(s):

Alkyl Derivatives ◽

Derivatives Of

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The Alkyl Derivatives of Halogen Phenols and their Bactericidal Action. II. Bromophenols

Journal of the American Chemical Society ◽

10.1021/ja01338a057 ◽

1933 ◽

Vol 55 (11) ◽

pp. 4657-4662 ◽

Cited By ~ 21

Author(s):

Emil Klarmann ◽

Louis W. Gates ◽

Vladimir A. Shternov ◽

Philip H. Cox

Keyword(s):

Bactericidal Action ◽

Alkyl Derivatives ◽

Derivatives Of

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570. Compounds of potential pharmacological interest. Part IV. Aryl and alkyl derivatives of 1-aminoindane

Journal of the Chemical Society (Resumed) ◽

10.1039/jr9560002928 ◽

1956 ◽

pp. 2928 ◽

Cited By ~ 8

Author(s):

J. A. Barltrop ◽

R. M. Acheson ◽

P. G. Philpott ◽

K. E. MacPhee ◽

J. S. Hunt

Keyword(s):

Alkyl Derivatives ◽

Pharmacological Interest ◽

Derivatives Of

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CHEMISTRY AND SYNTHESIS OF SOME DIHYDRO-2H-l,4-BENZOTHIAZINE DERIVATIVES

Canadian Journal of Chemistry ◽

10.1139/v66-186 ◽

1966 ◽

Vol 44 (11) ◽

pp. 1247-1258 ◽

Cited By ~ 15

Author(s):

Raj Nandan Prasad ◽

Karin Tietje

Keyword(s):

Alkyl Halides ◽

Reduction Product ◽

Alkyl Derivatives ◽

Reaction Proceeds ◽

Thiazine Ring ◽

Derivatives Of ◽

Compound Xviii ◽

Acyl Derivatives

The formation of 3-oxo-3,4-dihydro-2H-1,4-benzothiazine (IIIa) by cyclization of alkyl 2-haloacetamidophenyl sulfides (I) was investigated; it is proposed that the reaction proceeds via a six-membered sulfonium halide. The preparation of 4-alkyl derivatives of IIIa and of 4-alkyl and 4-acyl derivatives of its reduction product 3,4-dihydro-2H-1,4-benzothiazine (Va) is described. Acylation of Va was shown to proceed without opening of the thiazine ring. Preparation of the O-benzoyl, N-benzoyl, and O,N-dibenzoyl derivatives of 2-(β-hydroxyethyl-mercapto)aniline (VIII) has permitted clarification of the confusion in the literature with respect to the derivatives of Va and VIII. Compound XVIII, the 1,1-dioxide of IIIa, undergoes C-alkylation at the 2-position when treated with alkyl halides, rather than O-alkylation as previously suggested.

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