80969-52-4Relevant academic research and scientific papers
A kind of high-yield, high-purity of the process for synthesizing source powder DAST
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Paragraph 0017, (2017/03/22)
The invention discloses a high-yield high-purity DAST source powder synthetic process. The synthetic process comprises the following two steps: 1, reacting 4-methylpyridine with methyl p-toluenesulfonate in the presence of absolute ethyl alcohol serving as a solvent to obtain an absolute ethyl alcohol solution of 4-methyl-N-methylpyridine tosilate; and 2, reacting 4-methyl-N-methylpyridine tosilate with p-dimethylaminobenzaldehyde in the presence of absolute ethyl alcohol serving as a solvent and under the catalytic action of di-n-butylamine or piperidine, so as to obtain high-yield (85-95%) high-quality (90-95%) DAST source powder. According to the synthetic process, absolute ethyl alcohol is used as a reaction solvent, harm of poisonous and harmful solvents such as methylbenzene and methyl alcohol to the body of an operator can be avoided and the pollution of waste liquid to the environment can be avoided. The research success of the high-yield high-purity DAST source powder synthetic process is beneficial to culture of high-quality large-sized DAST crystal, thereby laying a good material and theoretical basis for research on the DAST crystal and related products.
Characterization of molecular structure of DAST via NMR spectroscopy
Pang, Zi-Bo,Meng, Da-Lei,Xu, Yong-Kuan,Wu, Cong
, p. 11 - 15 (2015/11/09)
4-N, N-dimethylamino-4′-N′-methyl-stilbazolium tosylate (DAST) crystal has excellent properties of nonlinear optics and electro-optical effect, and it can be used in the fields of radiation and detection through wave bands from infrared to terahertz. Besi
N-Methylquinolinium derivatives for photonic applications: Enhancement of electron-withdrawing character beyond that of the widely-used N-methylpyridinium
Jeong, Jae-Hyeok,Kim, Ji-Soo,Campo, Jochen,Lee, Seung-Heon,Jeon, Woo-Yong,Wenseleers, Wim,Jazbinsek, Mojca,Yun, Hoseop,Kwon, O-Pil
, p. 8 - 17 (2014/11/08)
A series of π-conjugated styryl quinolinium push-pull chromophores have been designed and synthesized in order to examine the electron-withdrawing strength of various quinolinium electron acceptor groups, and their influence on the photophysical propertie
Spectroscopic investigation on the efficient organic nonlinear crystals of pure and diethanolamine added DAST
Karthikeyan,Haja Hameed,Sagaya Agnes Nisha,Ravi
, p. 667 - 674 (2013/11/06)
4-N,N′-dimethylamino-N-methyl-4-stilbazolium toyslate (DAST) and diethanolamine (DEA) added DAST crystals are grown by slow cooling method. The corresponding powder samples are examined by characterization studies such as XRD, FT-IR, FT-Raman, UV-Vis-NIR
