5,5-Диметилгидантоин CAS No.77-71-4

CAS № 77-71-4

Имя:

5.5-диметилгидантоинового

Синонимы:

T10

DMH

t10[qr]

дмх[qr]

нск8652

дантоиндмх

дмгидантоин

DM Гидантоин

Диметилгидантоин

5.5-диметилгидантоинового

5.5-Диметилгидрантоин

5.5-Диметилгидантоин

Гидантоин, 5.5-диметил-

5.5-диметил-2.4-имидазолидиндион

5.5-диметилимидазолидин-2.4-дион

Reference Information：

Введение:

5. 5-dimethylhydantoin is an important organic synthesis intermediate with a wide range of uses, it is a heterocyclic compound with a certain rigid skeleton. A range of valuable derivatives can be prepared by substitution reactions. Such as: dibromohydantoin, dichlorohydantoin and other widely used in organic synthesis, medicine, plastics, food, cosmetics, pesticides and other production areas.

Применение:

5. 5-dimethylhydantoin, also known as 5. 5-dimethylhydantoin, DMH, is a wide range of uses of organic synthesis intermediates, is a rigid heterocyclic compounds, can be prepared by substitution reaction of a series of valuable derivatives, such as: dibromohydantoin, dichlorohydantoin and other widely used in medicine, fine Chemicals in the production of pesticides, plastics and cosmetics.

preparation a. Add 600-800 parts of ammonium bicarbonate and 500-700 parts of acetone cyanohydrin to water and stir to fully dissolve, sealed when heated to 10 ℃; B. 30-50 parts of ammonia gas is introduced into the material prepared by Step a, and heated slowly to 50-65 ℃ for 1-2 hours, and stirring; c, the material prepared by Step B is heated to 75~85 ℃, the air is drawn for 30~50 minutes, and then cooled to room temperature and filtered to obtain crude dimethyl hydantoin and mother liquor; d. 950~1150 parts of crude dimethyl hydantoin prepared by Step c is put into a mixture of 150~300 parts of water and 700~900 parts of mother liquor, after heating to 80~98 ° C., 3~8 parts of activated carbon is added, decolorization is carried out for 20~40 minutes, the activated carbon is removed by filtration, and then crystallization is cooled, centrifugal filtration and drying are carried out to obtain a dimethyl hydantoin finished product.

uses :

for amino acid synthesis, but also as a special epoxy resin and water-soluble resin, fungicides, preservatives, etc. Its derivatives such as 1. 3-dichloro-5. 5-dimethylhydantoin can be used as chlorinating agent, Disinfection bactericide, 3-hydroxymethyl-5. 5-dimethylhydantoin is useful as a formaldehyde agent, a preservative, and the like.

mainly used as disinfectant, epoxy resin and amino acid raw materials

метод производства:

is obtained by reacting acetone cyanohydrin ([75-86-5]) with an aqueous ammonium carbonate solution at 50-80 °c.

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