- Preparation method of 1,4-bis(2-methylstyryl)benzene
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The invention relates to a preparation method of 1,4-bis(2-methylstyryl)benzene. The 1,4-bis(2-methylstyryl)benzene is prepared from diethyl methylbenzylphosphonate and terephthalaldehyde through a reaction. Compared with the prior art, the preparation me
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Paragraph 0025-0034
(2020/05/02)
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- 1,4-double (2-methyl styryl) benzenetrisamide preparation method
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The invention relates to a method for preparing 1,4-bis(2- methyl styryl) benzene (referred to as bis-MSB). The method comprises the following steps: with paraxylene and o-tolualdehyde as raw materials, carrying out bromination and wittig reactions, and preparing the 1,4-bis(2- methyl styryl) benzene by using a one-pot method without separating or purifying the intermediate product. The product is purified by alkylbenzene to obtain a 1,4-bis(2- methyl styryl) benzene product for flickering, the yield is 85.6-86.2%, and the product purity is higher than 99.5%. The 1,4-bis(2- methyl styryl) benzene is prepared by the one-pot method to reduce the reaction steps, simplify the operation process and improve the production efficiency, the production method is simple and effective, and industrial production has been realized.
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Paragraph 0021; 0022; 0023; 0024; 0025; 0026
(2019/02/04)
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- SYMMETRICAL AND UNSYMMETRICAL DERIVATIVES OF DISTYRYLBENZENE
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The symmetrically substituted derivatives I-V of 1,4-distyrylbenzene have been prepared via the Horner reaction.A modification of the latter enabled preparation of unsymmetrical derivatives of 1,4-distyrylbenzene.
- Arient, Josef
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p. 101 - 106
(2007/10/02)
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