Organic salt simultaneously containing hydroxyl and ester group as well as preparation method and application of organic salt

Abstract

The invention provides an organic salt simultaneously containing hydroxyl and ester groups as well as a preparation method and application of the organic salt. One end of the organic salt is hydroxyl, the other end of the organic salt is ammonium salt, and the middle of the organic salt contains ester groups. The invention also relates to a preparation method of the organic salt, dihydric alcohol and dihydropyran are subjected to a reaction to produce a tetrahydropyrane alcohol ether compound, one hydroxyl group on the dihydric alcohol is protected, the other hydroxyl group on the dihydric alcohol is subjected to a reaction with dibasic acid, and a dibasic acid monoester structure is generated; meanwhile, due to the existence of water and an acid catalyst generated by esterification reaction, tetrahydropyrane is separated from dihydric alcohol, protected hydroxyl is released, and a monoester compound with hydroxyl at one end, carboxyl at the other end and ester group in the middle is formed; the monoester reacts with ammonia water to prepare organic salt containing hydroxyl and ester groups at the same time; the obtained product is colorless liquid or white solid; and the organic salt can also be used for medical intermediates, dye intermediates and perfume intermediates. The preparation method is simple, efficient and suitable for large-scale production.

Description

technical field

[0001] The invention relates to the field of chemical industry; in particular, it relates to an organic salt containing both hydroxyl and ester groups, a preparation method and application thereof. Background technique

[0002] The hydroxyl group in organic compounds is weakly acidic, and the carboxyl group is acidic. When the carboxyl group reacts with the basic group, the basic group will often destroy the hydroxyl group, and the ester group in the compound will also be hydrolyzed due to the presence of the basic group. Therefore, in most cases, hydroxyl group, ester group and carboxylate cannot exist at the same time.

[0003] The organic salt containing hydroxyl and ester groups at the same time is a molecular structure with a hydroxyl group at one end and an ammonium salt at the other end and an ester group in the middle. Due to the particularity of its molecular structure, it can be used as an intermediate in the synthesis of various chemical products,...