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SU411088A1 - - Google Patents

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Publication number
SU411088A1
SU411088A1 SU1688526A SU1688526A SU411088A1 SU 411088 A1 SU411088 A1 SU 411088A1 SU 1688526 A SU1688526 A SU 1688526A SU 1688526 A SU1688526 A SU 1688526A SU 411088 A1 SU411088 A1 SU 411088A1
Authority
SU
USSR - Soviet Union
Prior art keywords
yield
target product
quinaldine
aroyl
carboxylic acid
Prior art date
Application number
SU1688526A
Other languages
Russian (ru)
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.)
Filing date
Publication date
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Priority to SU1688526A priority Critical patent/SU411088A1/ru
Application granted granted Critical
Publication of SU411088A1 publication Critical patent/SU411088A1/ru

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Description

1one

Изобретение относитс  к улучшенному способу получепи  1-ароил-1,2,3,4-тетрагидрохинальдинов , многие из которых наход т применение в народном хоз йстве в качестве физиологически активных Beui,ecTB.The invention relates to an improved method for the preparation of 1-aroyl-1,2,3,4-tetrahydroquinaldins, many of which are used in folk farms as physiologically active Beui, ecTB.

Известен способ получени  1-ароил-1,2,3,4тетрагидрохииальдинов , заключающийс  в том, что хинальдин подвергают восстановлению в автоклаве под давлением в 200 ат и повышенной температуре, полученный при этом 1,2,3,4-тетрагидрохипальдин подвергают ацилированию ангидридом или галоидангидридом ароматической карбоновой кислоты. Выход целевого продукта па стадии ацилировани  не превышает 30-40%, что делает суммарный выход на двух стади х небольшим.A known method for producing 1-aroyl-1,2,3,4 tetrahydrohiyaldins, is that quinaldine is subjected to reduction in an autoclave under a pressure of 200 at and an elevated temperature, the resulting 1,2,3,4-tetrahydrochipaldine is acylated with anhydride or aromatic carboxylic acid anhydride. The yield of the target product in the acylation step does not exceed 30-40%, which makes the total yield in two stages small.

Известный способ характеризуетс  низким выходом целевого продукта, двухстадийностью процесса, причем стади  1гидрировани  требует сложного аппаратурного оформлени . The known method is characterized by a low yield of the target product, a two-stage process, and the stage of hydration requires complex instrumentation.

С целью повышени  выхода целевого продукта и упрощени  процесса предлагают способ получени  1-ароил-1,2,3,4-тетрагидрохинальдинов , заключающийс  в том, что хциальдин подвергают взаимодействию с хлорангидридом соответствуюп1.ей ароматической карбоновой кислоты при нагревании, лучше при 50°С. Целевой продукт выдел ют известным способом. Выход 70-80%.In order to increase the yield of the target product and simplify the process, a method for the preparation of 1-aroyl-1,2,3,4-tetrahydroquinaldins is proposed, which means that chcialdin is reacted with the corresponding acid aromatic carboxylic acid chloride, better at 50 ° C . The desired product is isolated in a known manner. Yield 70-80%.

Пример. 1-Бензоил-2-метил-1,2,3,4-тетрагидрохииолин . Example. 1-Benzoyl-2-methyl-1,2,3,4-tetrahydroxyioline.

Смесь 14,3 г (0,1 моль) безводного хинальдина и 7 :г (0,05 моль) хлористого бензоила выдерживают в течение 2 час при 50°С, после чего обрабатывают водным аммиаком и перегон ют с паром. Остаток в перегонной колбе отдел ют, сушат и трижды перекристаллизовывают из ацетона. Выход 9 г (72%); белоснеЖНые кри€таллы; т. 1пл. 117-118°С; ,51;A mixture of 14.3 g (0.1 mol) of anhydrous quinaldine and 7: g (0.05 mol) of benzoyl chloride is kept for 2 hours at 50 ° C, after which it is treated with aqueous ammonia and distilled with steam. The residue in the distillation flask is separated, dried and recrystallized three times from acetone. Yield 9 g (72%); snow-white crises; t. 1pl. 117-118 ° C; , 51;

НМ (Igs4,62). NM (Igs4,62).

Найдено, %: С 81,7; Н 6,5; N 5,8.Found,%: C 81.7; H 6.5; N 5.8.

Ci7H,7NO.Ci7H, 7NO.

Вычислено, %: С 81,9; П 6,7; N 5,5.Calculated,%: C 81.9; P 6.7; N 5.5.

Аналогично получены:Similarly obtained:

1 -л-иитробензоил-2-метил-1,2,3,4-тетрагидрохпнолпи ,т. пл. 110°С;1-l-itrobenzoyl-2-methyl-1,2,3,4-tetrahydrochpolnpi, t. square 110 ° C;

Claims (2)

1. Способ получени  1-ароил-1,2,3,4-тетрагидрохцнальдинов , исход  из хинальдина, с выделепием целевого продукта известным способом , отличающийс  тем, что, с целью повышени  выхода целевого продукта и упрощени  процесса, хинальдин подвергают взаимодействию с хлорангидридом соответствую3 щей ароматической карбоновой кислоты при нагревании. 4 1. A method of producing 1-aroyl-1,2,3,4-tetrahydrochcnaldins, starting from quinaldine, with extracting the target product in a known manner, characterized in that, in order to increase the yield of the target product and simplify the process, quinaldine is reacted with an appropriate acid chloride 3 aromatic carboxylic acid when heated. four 2. Способ по п. 1, отличающийс  тем, что процесс ведут при 50°С.2. A method according to claim 1, characterized in that the process is carried out at 50 ° C.
SU1688526A 1971-07-30 1971-07-30 SU411088A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1688526A SU411088A1 (en) 1971-07-30 1971-07-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1688526A SU411088A1 (en) 1971-07-30 1971-07-30

Publications (1)

Publication Number Publication Date
SU411088A1 true SU411088A1 (en) 1974-01-15

Family

ID=20485192

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1688526A SU411088A1 (en) 1971-07-30 1971-07-30

Country Status (1)

Country Link
SU (1) SU411088A1 (en)

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