6392-24-1Relevant academic research and scientific papers
Synthesis and characterization of new mesogenic 4-(n-Alkoxy)-3-methoxy- benzaldehyde semicarbazones
Rajasekhar Prasad,Nagappa,Lokanatha Rai
, p. 4605 - 4610 (1998)
Synthesis of a homologous series of mesogenic 4-(n-alkoxy)-3-methoxy benzaldehyde semicarbazones starting from vanillin via alkylation with n- alkyl bromide under phase transfer condition is described.
Acid-alkaline degradation of the anionic surface active agent and its application
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Paragraph 0054-0055, (2019/05/15)
The present invention discloses a structural formula (I) Compound and its use in the polymerization of the emulsion. And discloses the preparation process, using the compound prepared by the acid-base under the conditions of the rapid decomposition of the
Synthesis and liquid crystalline properties of a new homologous series of 4,5-disubstituted 2H-[1,2,3]-triazoles via azide-chalcone oxidative cycloaddition reaction
Sowmya,Rai, K. M. Lokanatha
, p. 764 - 768 (2017/07/07)
A new homologous series of 4,5-disubstituted 2H-[1,2,3]-triazole derivatives were synthesized from chalcones and sodium azide via oxidative cycloaddition reaction; CuI was used as catalyst. Flexibility in the synthesized molecules was provided by attaching straight alkoxy chains. The synthesized compounds were characterized by elemental analysis, and 1HNMRand 13CNMRand LC-MS spectroscopies . The stability and range of the mesophases increased with the length of the chain on the triazoles. The melting point, transition temperatures, and enantiotropic liquid crystal morphologies were determined by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM) equipped with a hot stage. Journal compilation
Synthesis and characterization of new homologous series of unsymmetrical liquid crystalline compounds based on chalcones and 3, 5-disubstituted isoxazoles
Sowmya,Lokanatha Rai
, p. 67 - 73 (2017/01/24)
Two homologous series of unsymmetrical alkylated chalcones and 3,5-diaryl isoxazoles, consisting of 20 members, with various n-alkyl bromides (n=2?7, 10, 12, 14, 16) have been synthesized and studied for their liquid crystalline property. Simple strategy was employed to achieve the target materials. Flexibility in the synthesized molecules is provided by attaching straight alkoxy chains, where one terminal group is fixed and other terminal group is varied. The synthesized compounds were characterized on the basis of Mass, IR and NMR spectroscopy. The stability and the range of the mesophases increased with the length of the chain on the isoxazoles. The melting point, transition temperatures and enantiotropic liquid crystal morphologies were determined by polarizing optical microscopy (POM) in conjunction with a hot stage and by differential scanning calorimetry (DSC). [Figure not available: see fulltext.]
Fluorescence-enhanced gels of D-π-A diphenylacrylonitrile derivatives: Influence of nitro group and alkoxy chain
Wang, Sisi,Xue, Pengchong,Wang, Panpan,Yao, Boqi,Li, Kechang,Liu, BaiJun
, p. 302 - 309 (2015/08/06)
Abstract 4-nitrodiphenylacrylonitrile and diphenylacrylonitrile derivatives consisting of methoxy group and alkoxy chain with different lengths were synthesized and their gelation abilities were investigated. It was found that compounds with longer alkoxy
COMPOUNDS AND FORMULATIONS SUITABLE FOR RADICAL SCAVENGING
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Page/Page column 60; sheet 9, (2008/12/06)
The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullere
