- Production method of 2-acetamido-4-methyl benzene alkyl ether
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The invention relates to a production method of 2-acetamido-4-methyl benzene alkyl ether. The production method comprises the following steps of (1) adding o-amino-p-cresol into a reaction still, adding acetic acid for acetylation to obtain o-acetamido-p-cresol; (2) performing detection after reacting for a certain time in the step 1, if a detection result is that ammonia ions exist, then continuously performing the reaction in the step (1); if the reaction result is that the ammonia ions do not exist, then adding sulphate or haloalkane in the reaction still for an alkylation reaction, so as to obtain the 2-acetamido-4-methyl benzene alkyl ether. The production method provided by the invention is simple and easy in obtaining the raw materials, mature in technology, low in cost, less in pollution and high in yield.
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Paragraph 0031-0034
(2017/03/08)
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- Palladium-catalyzed ortho-alkoxylation of anilides via C-H activation
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A palladium-catalyzed ortho-alkoxylation of anilides with both primary and secondary alcohols via ligand-directed C-H activation has been explored. This alkoxylation promoted by catalytic methanesulfonic acid proceeds well at room temperature in most cases and affords aryl alkyl ethers in moderate to good yields.
- Jiang, Tao-Shan,Wang, Guan-Wu
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p. 9504 - 9509,6
(2012/12/12)
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- Palladium-catalyzed C-H aminations of anilides with N - fluorobenzenesulfonimide
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The first amide-directed, palladium-catalyzed, intermolecular, highly selective C-H aminations with the non-nitrene-based nitrogen source N-fluorobenzenesulfonimide have been developed. This methodology might provide a new pathway for directed metal-catalyzed aromatic C-H amination.
- Sun, Kai,Li, Yan,Xiong, Tao,Zhang, Jingping,Zhang, Qian
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supporting information; experimental part
p. 1694 - 1697
(2011/04/17)
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- Compounds and methods for doping liquid crystal hosts
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This invention provides chiral thioindigo compounds for doping smectic liquid crystal hosts, wherein the compounds modulate a chiral bulk property of an induced chiral smectic liquid crystal phase upon irradiation at a wavelength in the visible range. Modulation of the chiral bulk property is effected by reversible trans-cis photoisomerization of the compound upon irradiation. The compounds maintain their rod-like shape in both isomeric forms, and hence do not destabilize the chiral smectic liquid crystal phase. Compounds according to the invention are useful in optical devices such as optical switches, displays, and memory.
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