2077-46-5Relevant articles and documents
Synthesis method of 2-hydroxyl-3,6-dichlorobenzoic acid
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Paragraph 0079; 0084; 0085; 0086; 0093, (2018/05/16)
The invention discloses a synthesis method of 2-hydroxyl-3,6-dichlorobenzoic acid. The synthesis method of the 2-hydroxyl-3,6-dichlorobenzoic acid comprises the following step: under existence of protective gas, carrying out nucleophilic substitution reaction in methanol to obtain a compound 1. The method has the advantages that the raw materials are readily available, the amount of wastewater produced in a reaction process is relatively small, the process is simple, and the purity of a product is high.
A preparing method of 2-methoxy-3,6-dichlorobenzoic acid
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, (2017/01/26)
A preparing method of 2-methoxy-3,6-dichlorobenzoic acid is disclosed. The preparing method includes etherifying 2,3,6-trichlorobenzoic acid in methanol under action of sodium methoxide to prepare the 2-methoxy-3,6-dichlorobenzoic acid, wherein the mole ratio of the 2,3,6-trichlorobenzoic acid to the sodium methoxide is 1:1-1:10. The preparing method also includes a step of subjecting a compound shown as a formula 2 to chlorination, tertiary butyl or sulfo group removing and oxidation to prepare the 2,3,6-trichlorobenzoic acid. The preparing method is simple in operation, low in raw material cost, low in production cost, convenient in after-treatment, mild in reaction conditions, environmental friendly, high in yield, short in reaction time and suitable for industrial production.
PRODUCTION OF 2,3,6-TRICHLOROBENZOIC ACID BY LIQUID-PHASE CATALYTIC OXIDATION OF 2,3,6-TRICHLOROTOLUENE
Shcherbina, F. F.,Tmenov, D. N.,Lysukho, T. V.,Belous, N. P.
, p. 2076 - 2078 (2007/10/02)
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