SU195440A1 - Method of producing spiro- - Google Patents
Method of producing spiro-Info
- Publication number
- SU195440A1 SU195440A1 SU1070301A SU1070301A SU195440A1 SU 195440 A1 SU195440 A1 SU 195440A1 SU 1070301 A SU1070301 A SU 1070301A SU 1070301 A SU1070301 A SU 1070301A SU 195440 A1 SU195440 A1 SU 195440A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- spiro
- producing
- bromine
- acetic acid
- producing spiro
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- SCVFZCLFOSHCOH-UHFFFAOYSA-M Potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- -1 alkali metal acetate Chemical class 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JKTCBAGSMQIFNL-UHFFFAOYSA-N 2,3-Dihydrofuran Chemical compound C1CC=CO1 JKTCBAGSMQIFNL-UHFFFAOYSA-N 0.000 description 1
- RIZMRRKBZQXFOY-UHFFFAOYSA-N Ethion Chemical compound CCOP(=S)(OCC)SCSP(=S)(OCC)OCC RIZMRRKBZQXFOY-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000003413 spiro compounds Chemical class 0.000 description 1
- 125000003003 spiro group Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Description
Известен способ получени спиро-(б,6-диметилгексагидробензофуранон-4 )-2 (3,5,7, Н)2 (5,5-диметилциклогександиоиа-1,3) взаимодействием бисдпмедонилметана с бромом в растворе хлороформа.A known method for producing spiro- (b, 6-dimethylhexahydrobenzofuranone-4) -2 (3,5,7, H) 2 (5,5-dimethylcyclohexanedioia-1,3) by reacting bisdpredonylmethane with bromine in a chloroform solution.
С целью упрощени процесса, предложен способ получени указанных спиросоединений р да дигидрофурана, заключающийс в том, что бисдимедонилметаиы подвергают взаимодействию с бромом в уксусной кислоте в присутствии ацетата щелочного металла при нагревании до 100°С.In order to simplify the process, a method has been proposed for the preparation of these spiro compounds of the dihydrofuran range, consisting in that the bisdimedonylmetay is reacted with bromine in acetic acid in the presence of an alkali metal acetate when heated to 100 ° C.
Пример. С п и р о - (6,6-д иметилгексагидрофуранон-4 ) -2 (3,5,7, Н) - 2 (5,5диметилциклогександион- 1,3).Example. With p and p about - (6,6-d and methyl hexahydrofuran-4) -2 (3,5,7, N) - 2 (5,5 dimethylcyclohexanedione-1,3).
2,9 г (0,01 моль) бисдимедонилметана, 2,2 г (0,021 моль) ацетата кали раствор ют, нагрева на вод ной бане, в 20 мл уксусной кислоты и при энергичном перемешивании медленно прибавл ют 1,6 г (0,01 моль) брома в 15 мл уксусной кислоты. Перемещивание продолжают еще 10-15 мин, оставл ют на 1 - 2 час при комнатной температуре и выливают2.9 g (0.01 mol) of bis-imidonylmethane, 2.2 g (0.021 mol) of potassium acetate are dissolved, heated in a water bath, in 20 ml of acetic acid and with vigorous stirring, 1.6 g (0, 01 mol) bromine in 15 ml of acetic acid. Transferring is continued for another 10-15 minutes, left for 1 to 2 hours at room temperature and poured.
в воду. Осадок перекристаллизовывают из этаиола и получают 2,5 г (86%) бесцветных кристаллов; т. пл. 211-213°С (по литературным данным 212-213°С). Найдено, %: С 70,78; Н 7,77.in water. The precipitate is recrystallized from ethiol to obtain 2.5 g (86%) of colorless crystals; m.p. 211-213 ° С (according to literary data 212-213 ° С). Found,%: C 70.78; H 7.77.
Cl7H2204.Cl7H2204.
Вычислено, %: С 70,32; Н 7,64. Аналогично получают р д спиропроизводных дигидрофурана.Calculated,%: C, 70.32; H 7.64. Similarly, a series of spiro derivatives of dihydrofuran is obtained.
Предмет изобретени Subject invention
Способ получени спиро-(6,6-диметилгексагидробензофуранон-4 )-2 (3,5,7, Н) -2(5,5- диметилциклогександиона-1 ,3) или его аналогов взаимодействием бисдимедонилметанов с бромом в среде органического растворител , отличающийс тем, что, с целью упрощени процесса , в качестве растворител используют уксусную кислоту и процесс ведут в присутствии ацетата щелочного металла при нагревании до 100°С.The method of obtaining spiro- (6,6-dimethylhexahydrobenzofuran-4) -2 (3,5,7, N) -2 (5,5-dimethylcyclohexanedione-1, 3) or its analogs by the interaction of bis-dimethylmethanes with bromine in an organic solvent, which differs in order to simplify the process, acetic acid is used as a solvent and the process is carried out in the presence of an alkali metal acetate when heated to 100 ° C.
Publications (1)
Publication Number | Publication Date |
---|---|
SU195440A1 true SU195440A1 (en) |
Family
ID=
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4147702A (en) | 1,4-Dioxane polycarboxylates | |
US4769493A (en) | Process for producing tetrafluorophthalic acid | |
FI105402B (en) | Process for the Large-Scale Preparation of 2 ', 3'-Didehydro-2', 3'-Dideoxynucleosides | |
JPH0148911B2 (en) | ||
CZ20022601A3 (en) | Process for preparing 5-cyanophthalide | |
SU195440A1 (en) | Method of producing spiro- | |
KR960008664B1 (en) | Process for the preparation of 2,b-dichlorodiphenylamino acetic acid derivatives | |
JPH0522709B2 (en) | ||
KR860000591B1 (en) | Process for preparing pyridine carboxylic acid derivatives | |
SU348570A1 (en) | METHOD OF OBTAINING DERIVATIVES OF N-OXIDE-3-NITROIZOXYZYLE | |
SU295760A1 (en) | METHOD FOR OBTAINING HETEROCYCLIC | |
KR100898099B1 (en) | Process for preparation of Zaltoprofen | |
SU170933A1 (en) | ||
SU359821A1 (en) | ||
DK141502B (en) | Process for preparing a 7-acylamido-3-methyl-3-cephem-4-carboxylic acid ester. | |
SU406834A1 (en) | METHOD OF OBTAINING ALKYL (BENZIMIDAZOZOLYL-2) - | |
US2899429A (en) | Nitroethylenes | |
SU263497A1 (en) | METHOD FOR PRODUCING DERIVATIVES 3-KETO-a-4-KAR-BOXAMIDOALKYL-2,3-DIHYDRO-1,4-BENZOXAZINES | |
JPS6256149B2 (en) | ||
SU301328A1 (en) | METHOD OF OBTAINING PERO-CHLORINATED | |
SU345162A1 (en) | METHOD OF OBTAINING 2- [7- (N-AJlKYLANILINO) p-OXIPROPYLMERCAPTO] -BENZYTHIAZOLES | |
KR820000785B1 (en) | Process for preparing 1-(tetrahydro-2-furanyl)-5-fluorouracil | |
SU404238A1 (en) | METHOD OF OBTAINING FLAVON-7-OXYACETATE LOWER AL KIL | |
SU255285A1 (en) | ||
SU313353A1 (en) | Method of producing benzimidazole-2-methyl ester of phenyldithiocarbamic acid |