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1 841 141

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(51)

IPC

C07C201/12(2006-01-01)

C07C205/51(2006-01-01)

(21) (22)

Application

978690/04, 1966-12-01

(22)

Actual filing date

1966-12-01

(45)

Published

2016-06-10

(72)

Inventor

Firkin Aleksandr IvanovichSmirnov Sergej PetrovichAbdrakhmanov Ildus ShafikovichChalkova Alina Alfredovna

METHOD OF PRODUCING α-METHYL-α-CHLORO-γ,γ,γ-TRINITROBUTYRIC ACID Russian patent published in 2016 - IPC C07C201/12 C07C205/51

Abstract SU 1841141 A1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing α-methyl-α-chloro-γ,γ,γ-trinitrobutyric acid. Method comprises reacting α-sulpho-α-methyl-γ,γ,γ-trinitrobutyric acid with excess thionyl chloride with subsequent treatment of obtained product with excess alcohol at boiling point thereof and saponification of formed ether with hydrochloric acid at t = 95-100°C. Disclosed method enables to obtain α-methyl-α-chloro-γ,γ,γ-trinitrobutyric acid with high output.

EFFECT: acid can be used as semi-product in organic synthesis, including biologically active substances and pharmaceutical preparations.

1 cl, 1 ex

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SU 1 841 141 A1

Authors

Firkin Aleksandr Ivanovich

Smirnov Sergej Petrovich

Abdrakhmanov Ildus Shafikovich

Chalkova Alina Alfredovna

Dates

2016-06-10—Published

1966-12-01—Filed