2049-95-8Relevant articles and documents
Schuikin et al.
, p. 1239; engl. Ausg. S. 1196 (1958)
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Inatome et al.
, p. 292,294 (1952)
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Synthesis method of tert-amylbenzene with controllable isomer content
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Paragraph 0029-0037, (2020/06/17)
The invention provides a synthesis method of tert-amylbenzene with controllable isomer content. The synthesis method comprises the following steps: 1) carrying out a substitution reaction on tert-amylalcohol and haloid acid to obtain a halopentane intermediate; 2) carrying out a Friedel-Crafts alkylation reaction on the halopentane intermediate and benzene under the catalysis of a Lewis acid to obtain tert-amylbenzene; wherein the Lewis acid is one of ZnCl2 and FeCl3 or a mixture of the ZnCl2 and the FeCl3; the temperature of the Friedel-Crafts alkylation reaction is -10 to 40 DEG C; the vacuum degree is absolute pressure of 2-75kPa; and the reaction time is 0.5-4 h. According to the synthesis method, by setting reasonable reaction steps, controlling reaction conditions, selecting a proper catalyst and the like, the isomerization ratio is reduced, and the tert-amyl product with high yield and high selectivity is obtained.
MANUFACTURING METHOD OF ALKYL SUBSTITUTED AROMATIC HYDROCARBON
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Paragraph 0053-0055, (2019/01/22)
PROBLEM TO BE SOLVED: To provide a manufacturing method capable of enhancing conversion ratio of aromatic hydrocarbon of a reaction substance and manufacturing alkyl substituted aromatic hydrocarbon at high selectivity and high yield. SOLUTION: There is provided a manufacturing method of alkyl substituted aromatic hydrocarbon (X-2) including a process for alkylating an alkyl group in aromatic hydrocarbon having the alkyl group having a hydrogen atom at an α position (X-1) with alkene, in which a solid base (D) derived from a composition containing an alkali earth metal compound (A) containing one or more kind of magnesium oxide, magnesium hydroxide, magnesium carbonate, calcium oxide, calcium hydroxide, and calcium carbonate, a potassium compound (B) containing one or more kind of potassium hydroxide, and potassium carbonate, and a metal sodium (C) is used as a reaction catalyst for alkylation. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT