SU539038A1 - Method for preparing substituted 4-halogen-2-alkoxy-2-oxo-1,2-oxa-phosphol-s-ene - Google Patents
Method for preparing substituted 4-halogen-2-alkoxy-2-oxo-1,2-oxa-phosphol-s-eneInfo
- Publication number
- SU539038A1 SU539038A1 SU2133404A SU2133404A SU539038A1 SU 539038 A1 SU539038 A1 SU 539038A1 SU 2133404 A SU2133404 A SU 2133404A SU 2133404 A SU2133404 A SU 2133404A SU 539038 A1 SU539038 A1 SU 539038A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ene
- phosphol
- oxa
- oxo
- alkoxy
- Prior art date
Links
Description
1one
Изобретение относитс к области химии фосфорорганических циклических соединений, а именно к способу получени новых 4-галоген-2-алкоксн-2-оксо-1 ,2-оксафосфол - 3 - енов общей формулыThe invention relates to the field of chemistry of organophosphorus cyclic compounds, namely to a method for producing new 4-halogen-2-alkoxn-2-oxo-1, 2-oxa-phosphol-3-ene of the general formula
сwith
/R/ R
//
RO/RO /
ОABOUT
ТЯ& R, R н R - низший алкнл,T & R, R n R - the lowest alknl,
Hal - хлор или бром.Hal - chlorine or bromine.
Известен снособ получени 2-галоген-2-оксо1 ,2-оксафосфол-З-енов взаимодействием треххлористого или трехбромистого фосфора с 2,2,6,6-тетраметил-4-гептин-3-олом, с последующей обработкой полученного продукта водой 1.A method for preparing 2-halo-2-oxo1, 2-oxa-phosphol-3-ene is known by reacting phosphorus trichloride or trichromide with 2,2,6,6-tetramethyl-4-heptin-3-ol, followed by treating the resulting product with water 1.
Известен также способ получени 2-окси-2оксо-3 ,5,5-триметнл-1,2-оксафосфол-3-еиа взаимодействием алкилдихлорфосфита с диацетоновым спиртом, с последующим гидролизом и дегидратацией полученного продукта 2.There is also known a method for producing 2-hydroxy-2oxo-3, 5,5-trimetnl-1,2-oxaphosphol-3-ea by reacting alkyl dichlorophosphite with diacetone alcohol, followed by hydrolysis and dehydration of the resulting product 2.
Однако соединени приведенной формулы, их свойства и снособы получени в литературе не описаны и вл ютс новыми.However, the compounds of the above formula, their properties and the contact information of the preparation are not described in the literature and are new.
Дл получени замещенных 4-галоген-2-алкОКСИ-2-ОКСО-1 ,2-оксафосфол-З-енов, которыеTo obtain substituted 4-halo-2-alkoxy-2-oxy-1, 2-oxaphosphol-3-enes, which
могут быть использованы как полупродукты дл синтеза различных производных 1,2-оксафосфол-3-ена по предлагаемому способу диалкиловый эфир алкилзамещенной 1,2-алкадненфосфоиовой кислоты подвергают взаимодействию с хлором или бромом в среде инертного органического растворител при 10-60°С.can be used as intermediates for the synthesis of various 1,2-oxa-phosphol-3-ene derivatives according to the proposed method of alkyl-substituted 1,2-alkadnenphosphoic acid dialkyl ether is reacted with chlorine or bromine in an inert organic solvent medium at 10-60 ° C.
Способ характеризуетс простотой и доступностью исходных реагентов.The method is characterized by simplicity and affordability of starting reagents.
Состав и строение полученных продуктов доказано спектроскопическими методами и данными элементного аиалнза.The composition and structure of the products obtained were proved by spectroscopic methods and data of elemental analysis.
Иример 1. 4-Хлор-2-метокси-2--оксо-5,5диметнл-1 ,2-оксафосфол-2-ен.Irimer 1. 4-Chloro-2-methoxy-2 - oxo-5,5 dimethyl-1, 2-oxaphosphol-2-ene.
К 21,1 г (0,12 мол ) диметилового эфира 3-метил-1,2-бутадиенфосфоновой кнелоты в 100 мл ecu при перемещивании прибавл ют из капельной воронки раствор 8,5 г (0,12 мол ) хлора в 100 мл ecu или в тех же услоВИЯХ барботируют в раствор 0,12 мол хлора в смеси с инертным газом, вз тыми в соотнощении 1:2 (азот пли аргон). Сразу по окончании хлорировани снимают ЯМР-спектр реакционной массы. В спектре, кроме сигналов,To 21.1 g (0.12 mol) of dimethyl ether of 3-methyl-1,2-butadiene phosphonic acid in 100 ml of ecu, a solution of 8.5 g (0.12 mol) of chlorine in 100 ml of ecu is added during transfer from a dropping funnel. or in the same conditions, it is bubbled into a solution of 0.12 mol of chlorine in a mixture with an inert gas taken in a 1: 2 ratio (nitrogen or argon). Immediately after chlorination, the NMR spectrum of the reaction mass is removed. In the spectrum, besides the signals,
отвечающих целевому иродукту, виден одиночный сигнал больщой ннтенсивиости метильной группы бон,, 2,83 м. д.., что указывает на присутствие в реакционной массе хлористого метила. После отгонки растворител в вакууме и перегонки остатка получают 19 г (80%)corresponding to the target product, a single signal of the large intensity of the methyl group of bon ,, 2.83 ppm, is seen, indicating the presence of methyl chloride in the reaction mass. After distilling off the solvent in vacuo and distilling the residue, 19 g (80%) are obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2133404A SU539038A1 (en) | 1975-05-13 | 1975-05-13 | Method for preparing substituted 4-halogen-2-alkoxy-2-oxo-1,2-oxa-phosphol-s-ene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2133404A SU539038A1 (en) | 1975-05-13 | 1975-05-13 | Method for preparing substituted 4-halogen-2-alkoxy-2-oxo-1,2-oxa-phosphol-s-ene |
Publications (1)
Publication Number | Publication Date |
---|---|
SU539038A1 true SU539038A1 (en) | 1976-12-15 |
Family
ID=20619162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2133404A SU539038A1 (en) | 1975-05-13 | 1975-05-13 | Method for preparing substituted 4-halogen-2-alkoxy-2-oxo-1,2-oxa-phosphol-s-ene |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU539038A1 (en) |
-
1975
- 1975-05-13 SU SU2133404A patent/SU539038A1/en active
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