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SU513965A1 - The method of purification of benzoin esters - Google Patents

The method of purification of benzoin esters

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Publication number
SU513965A1
SU513965A1 SU1976573A SU1976573A SU513965A1 SU 513965 A1 SU513965 A1 SU 513965A1 SU 1976573 A SU1976573 A SU 1976573A SU 1976573 A SU1976573 A SU 1976573A SU 513965 A1 SU513965 A1 SU 513965A1
Authority
SU
USSR - Soviet Union
Prior art keywords
purification
benzoin
benzoin esters
esters
alcohol
Prior art date
Application number
SU1976573A
Other languages
Russian (ru)
Inventor
Елена Васильевна Гришина
Андрей Васильевич Ельцов
Эдуард Рудольфович Захс
Марина Петровна Носкова
Original Assignee
Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета filed Critical Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета
Priority to SU1976573A priority Critical patent/SU513965A1/en
Application granted granted Critical
Publication of SU513965A1 publication Critical patent/SU513965A1/en

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Description

(54) СПОСОБ ОЧИСТКИ ЭФИРОВ БЕНЗОИНА(54) METHOD FOR CLEANING BENZINE ETHER

по даным пол рографии 1% бензила и менее 0,1 % бензоина.according to the data of 1% benzyl and less than 0.1% benzoin.

Пример 3. К раствору 11,8 г смеси изобутилового и н-бутилового эфиров бензоина в 20 мл изобутилового спирта приливают 15 мл 40%-него раствора едкого кали. Через смесь барботируют воздух в течение 3 ч при 110°С. До окислени  эфиры бензоина содержали 7% бензоина. После окислени  смесь эфиров по данным пол рографии содержит 0,75% бензила и менее 0,1% бензоина.Example 3. To a solution of 11.8 g of a mixture of isobutyl and n-butyl esters of benzoin in 20 ml of isobutyl alcohol is poured 15 ml of 40% potassium hydroxide solution. Air is bubbled through the mixture for 3 hours at 110 ° C. Before oxidation, the benzoin esters contained 7% benzoin. After oxidation, the mixture of esters according to polarography contains 0.75% benzyl and less than 0.1% benzoin.

Claims (1)

Формула изобретени Invention Formula Способ очистки эфиров бензоина от примеси бензоина, отличающийс  тем, что, с целью повышени  чистоты целевого продукта, исходный эфир в спиртово-щелочной среде обрабатывают кислородом воздуха при 80- 120°С с последующей обработкой реакционной массы водным раствором щелочи и отделением выпавшего при этом осадка или масла.The method of purification of benzoin esters from benzoin impurity, characterized in that, in order to increase the purity of the target product, the starting ester in an alcohol-alkaline medium is treated with atmospheric oxygen at 80-120 ° C, followed by treating the reaction mass with an alkali aqueous solution and separating the precipitated precipitate or oils.
SU1976573A 1973-12-11 1973-12-11 The method of purification of benzoin esters SU513965A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1976573A SU513965A1 (en) 1973-12-11 1973-12-11 The method of purification of benzoin esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1976573A SU513965A1 (en) 1973-12-11 1973-12-11 The method of purification of benzoin esters

Publications (1)

Publication Number Publication Date
SU513965A1 true SU513965A1 (en) 1976-05-15

Family

ID=20569589

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1976573A SU513965A1 (en) 1973-12-11 1973-12-11 The method of purification of benzoin esters

Country Status (1)

Country Link
SU (1) SU513965A1 (en)

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