353247-85-5Relevant academic research and scientific papers
Ultrasound effect on the synthesis of 4-alkyl-(aryl)aminobenzaldehydes
Magdolen, Peter,Me?iarová, Mária,Toma, ?tefan
, p. 4781 - 4785 (2007/10/03)
The sonochemical nucleophilic aromatic substitutions on 4-fluorobenzaldehyde with different azacycloalkanes and azoles have been studied. A beneficial ultrasound effect was observed, reactions were clean and high yields of the products were isolated after 15 min sonication.
Synthesis and Mesomorphic Properties of N-n-Alkyl-N--Piperazines
Bartulin, J.,Zuniga, C.,Muller, H.,Taylor, T. R.,Haase, W.
, p. 237 - 246 (2007/10/02)
We have synthesized the N-n-alkyl-N'--piperazines and studied their physical properties using calorimetric, optical and X-ray methods.Depending on alkyl chain length there are one or two liquid crystal phases.For the lower homologs there is a nematic and a smectic phase with the smectic being identified as probably smectic A and in the higher homologs only the smectic is present.The smectic phase has an interdigitated bilayer and the transition heat of the nematic-smectic transition becomes very small with decreasing alkyl chain length.
Synthesis and Mesogenic Properties of N'-(4-Acylphenyl)-N-alkylpiperazines
Bartulin, Juan,Zuniga, Celia,Muller, Hedio,Taylor, Ted R.
, p. 1881 - 1886 (2007/10/02)
One synthesis of N-alkyl-N'-(4-acylphenyl)piperazines and their physical properties have been studied using calorimetric, optical, and X-ray crystallography methods.The compounds exhibit only smectic phases, the higher-temperature phase being a probable s
