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Polysubstituted pyridine salt compound and its preparation method

A kind of salt compound and compound technology, applied in the field of polysubstituted pyridine salt compound and preparation thereof

Inactive Publication Date: 2003-02-05
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the research on the nonlinear absorption of pyridinium salt molecular system, especially the saturated absorption and anti-saturated absorption is limited to the one-dimensional pyridinium salt molecule with 4-position monosubstituted on the pyridine ring.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Example 1: One of the polysubstituted pyridinium salt compounds, N-methyl-2,6-diiodide

[0007] Preparation of (trans-4-methoxystyryl)pyridinium salt

[0008] With 12.5 parts by weight of iodide N-methyl-2,6-lutidine salt, the corresponding compound of 20.4 parts by weight of aldehydes, p-methoxybenzaldehyde is dissolved in 158 parts by weight of methanol, stirring, reflux 4 hours, slow cooling, precipitated solids, the precipitated solids were recrystallized twice in methanol, each with 474 parts by weight of methanol, after twice recrystallized to obtain 23.1 parts by weight of the corresponding disubstituted pyridinium salt, N iodide -Methyl-2,6-bis(trans-4-methoxystyryl)pyridinium salt, yield 95.1%.

Embodiment 2

[0009] Example 2: The second compound of polysubstituted pyridinium salts, N-methyl-2,6-diiodide

[0010] Preparation of [trans-4-(N,N-dimethylamino)styryl]pyridinium salt

[0011] With 12.5 parts by weight of iodide N-methyl-2,6-lutidine salt, 22.4 parts by weight of the corresponding compound of aldehydes, p-dimethylaminobenzaldehyde is dissolved in 158 parts by weight of methanol, stirring, Reflux for 4 hours, cool slowly, and precipitate solids, and the precipitated solids are recrystallized twice in methanol, each time with 474 parts by weight of methanol, to obtain 24.6 parts by weight of the corresponding disubstituted pyridinium salt, orange-red crystal iodide N- Methyl-2,6-bis[trans-4-(N,N-dimethylamino)styryl]pyridinium salt, yield 96.2%.

Embodiment 3

[0012] Example 3: The third of polysubstituted pyridinium salt compounds, iodide N-methyl-2,6-bis(trans-

[0013] Preparation of ferrocenevinyl)pyridinium salt

[0014] With 12.5 parts by weight of iodide N-methyl-2,6-lutidine salt, 32.1 parts by weight of the corresponding compound of aldehydes, ferrocene formaldehyde was dissolved in 158 parts by weight of methanol, stirred, refluxed for 4 hours, Slowly cooling, solid is separated out, the solid that is separated out is recrystallized twice in methanol, each time with the methanol of 632 parts by weight, obtains the corresponding disubstituted pyridinium salt of 30.2 parts by weight, iodide N-methyl-2,6- Bis(trans-ferrocenevinyl)pyridinium salt, yield 94.2%.

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PUM

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Abstract

The present invention relates to a kind of polysubstituted pyridine salt compound and its preparation method, belonging to a new organic compound and field of organic compound preparation technology. Said invention uses iodized N-emthyl-2,6-dimethyl or iodized N-methyl-2,4,6-trimethyl pyridine salt and aldehyde correspondent compound as raw material, and makes them produce condensation reaction under the catalytic action of alkali so as to obtain the correspondent polysubstituted pyridine salt compound. Said new compound possesses excellent nonlinear optical absorption property and several rich assembling forms.

Description

technical field [0001] The invention relates to a class of polysubstituted pyridinium salt compounds and a preparation method thereof, belonging to the technical field of new organic compounds and their preparation. Background technique [0002] Pyridinium salt derivatives have excellent nonlinear optical properties, and have abundant assembly forms at the macroscopic level, and are easy to be deviceized and practical. Therefore, this system has shown great application prospects in the development of nonlinear optics. However, so far, the study of pyridinium salt molecular system in nonlinear absorption, especially saturated absorption and reverse saturated absorption, is limited to one-dimensional pyridinium salt molecules with 4-position monosubstituted on the pyridine ring. Contents of the invention [0003] The technical problem to be solved by the invention is to prepare a class of polysubstituted pyridinium salt compounds, aimi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D213/30C07D213/36C07F17/02
Inventor 汤杰徐秀玲杨帆
Owner EAST CHINA NORMAL UNIV
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