SU417420A1 - - Google Patents

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Publication number
SU417420A1
SU417420A1 SU1742889A SU1742889A SU417420A1 SU 417420 A1 SU417420 A1 SU 417420A1 SU 1742889 A SU1742889 A SU 1742889A SU 1742889 A SU1742889 A SU 1742889A SU 417420 A1 SU417420 A1 SU 417420A1
Authority
SU
USSR - Soviet Union
Prior art keywords
bis
halogenether
tetrahydropyrans
halo
simplify
Prior art date
Application number
SU1742889A
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.)
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Publication date
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Priority to SU1742889A priority Critical patent/SU417420A1/ru
Application granted granted Critical
Publication of SU417420A1 publication Critical patent/SU417420A1/ru

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Description

тилового эфира в 150 мл сухого серного эфила получают 11,5 г (выход 70%) 4-бромтетрагидропирана . Т. к«п. 58-60°С/12 мм, ng 1,4900, d2° 1,4086.of ethyl ester in 150 ml of dry sulfuric ether, 11.5 g (yield 70%) of 4-bromotetrahydropyran are obtained. T. to “n. 58-60 ° C / 12 mm, ng 1.4900, d2 ° 1.4086.

Пример 3. Получение З-пропил-4-хлортетрагидропирана .Example 3. Getting 3-propyl-4-chlortetrahydropyran.

При взаимодействии 10 г норошка цинка 17 г (0,1 моль) 1-бромгексена-2 и 12 г (0,1 моль) бис-хромметилового эфира в 150 мл серного эфира получают 8,5 г (53%) 3-нропил-4-хлортетрагидропирана . По данным ГЖХ полученный продукт идентичен с образсинтезированнымWhen reacting 10 g of zinc powder, 17 g (0.1 mol) of 1-bromhexene-2 and 12 g (0.1 mol) of bis-chromomethyl ether in 150 ml of ether give 8.5 g (53%) of 3-nropyl- 4-chlortetrahydropyran. According to GLC, the resulting product is identical with the synthesized

известным путем. known by.

цом.tsom.

т 20 Т. кип. 9ГС/16 мм, 1,4630, d|° 1,0398.t 20 T. kip. 9ГС / 16 mm, 1.4630, d | ° 1.0398.

Предмет изобретени Subject invention

Claims (2)

1.Способ получени  4-галогентетрагидропиранов , отличающийс  тем, что, с целью упрош,ени  технологии процесса, аллилгалогенид подвергают взаимодействию с бис-а-галогенэфиром в присутствии металла при температуре от -30 до +100°С, с выделением целевого продукта обычными приемами.1. A method of producing 4-halo-tetrahydropyrans, characterized in that, in order to simplify the process, the allyl halide is reacted with a bis-a-halogenether in the presence of a metal at a temperature of from -30 to + 100 ° C, with the release of the target product by conventional techniques . 2.Способ по п. 1, отличающийс  тем, что взаимодействие провод т в среде растворител .2. A method according to claim 1, characterized in that the reaction is carried out in a solvent medium.
SU1742889A 1972-01-31 1972-01-31 SU417420A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1742889A SU417420A1 (en) 1972-01-31 1972-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1742889A SU417420A1 (en) 1972-01-31 1972-01-31

Publications (1)

Publication Number Publication Date
SU417420A1 true SU417420A1 (en) 1974-02-28

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ID=20501657

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1742889A SU417420A1 (en) 1972-01-31 1972-01-31

Country Status (1)

Country Link
SU (1) SU417420A1 (en)

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