CN1041356A - The method of the derivative of preparation cyclopentenes and pentamethylene and cyclohexane - Google Patents
The method of the derivative of preparation cyclopentenes and pentamethylene and cyclohexane Download PDFInfo
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- CN1041356A CN1041356A CN89107404A CN89107404A CN1041356A CN 1041356 A CN1041356 A CN 1041356A CN 89107404 A CN89107404 A CN 89107404A CN 89107404 A CN89107404 A CN 89107404A CN 1041356 A CN1041356 A CN 1041356A
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Abstract
The method of cyclopentene derivatives, cyclopentane derivatives and cyclohexane derivant that a kind of preparation has fungicidal activity is provided.The structural formula of these derivatives and the definition of each group see specification sheets for details.
Description
The present invention relates to prepare the method for the cyclopentene derivatives that obviously has fungicidal activity and some pentamethylene and cyclohexane derivant, all these materials all can be used for preparing the cyclopentane derivatives that other has fungicidal activity.
(Japanese chemical association, 43(7), 1970, the 2204-8 pages or leaves) discloses 1-benzyl-2-carboxyl ring penta-1-alkene in Bull one literary composition; (Japanese chemical association, 60(2), 1987, the 836-8 pages or leaves) discloses 1-benzyl-2-methoxycarbonyl ring penta-1-alkene in another literary composition of Bull.But these reference do not point out that these two kinds of compounds have fungicidal activity.
Moreover, United States Patent (USP) 4067823 discloses 1-benzylidene-2-methoxycarbonyl pentamethylene, and Liebigs one literary composition (chemical yearbook, (8), 1980, the 1283-95) discloses 1-(4-methoxyl group-benzylidene)-2-methoxycarbonyl pentamethylene.
Correspondingly, common pending application application T616 discloses the compound that has microbe killing properties of following general formula
Wherein n represents an integer between the 0-5; Each R represents halogen atom, nitro, cyano group, hydroxyl, alkyl, alkylhalide group, alkoxyl group, the halogen alkoxyl group, amino, alkylamino, dialkylamino, carbalkoxy, carboxyl, alkyloyl, alkylthio, alkyl sulfinyl, alkane alkylsulfonyl, formamyl, alkyl amide, cycloalkyl or phenyl; R
1And R
2Represent hydrogen atom or alkyl respectively; R
5Represent hydrogen atom or alkyl or cycloalkyl; Condition be when n be 0 and R
1And R
2When all representing hydrogen atom, R
5Do not represent hydrogen atom or methyl.
The method of the usefulness marketable material preparation that T616 introduces needs at least 5 synthesis steps.Because the productive rate that each step obtains is not 100%, so the possible productive rate of formula I compound reduces with each successive synthesis step.But not finding as yet now provides the novel method of the productive rate of formula I chemical combination object height to prepare this compounds with being less than two synthesis steps.
So, the invention provides a kind of method for preparing above-mentioned formula I compound, this method is included in a kind of polar solvent and exists down, the compound of the logical formula II of heating,
Or the compound of logical formula III,
(n wherein, R, R
1, R
2And R
5Definition as above, X and Y represent halogen, chlorine or bromine atom preferably respectively) with the compound of logical formula IV
R wherein
5Definition as above, M represents basic metal, sodium atom preferably.
Said polar solvent is the compound of general formula (V) preferably
(R wherein
5Definition is as above), dimethyl formamide or methyl-sulphoxide.
If formula V compound is as solvent, R
5Preferably has definition equally in formula IV and the formula V.For example, if formula IV compound is a sodium methylate, recommending the solvent of formula V is methyl alcohol.
React under the reflux temperature that is preferably in 80 ℃-solvent and carry out.Best, with excessive formula IV compound.
As any substituent R, R
1, R
2And R
5Representative or when containing a kind of alkyl substituent, this substituting group can be straight chain or branching, can contain the carbon atom below 12, preferably below 6, particularly below 4.Naphthenic substituent can contain 3-8, best 3-6 carbon atom.
Recommend R
1And R
2Represent hydrogen atom or C respectively
1-4Alkyl, particularly methyl.
R is halogen preferably, particularly the chlorine atom.
Recommend R
5Represent hydrogen atom or C
1-6Alkyl.
Special recommendation be, n is 1, R represents the chlorine atom, preferably is substituted on the 4-position of phenyl ring R
1And R
2All represent hydrogen atom or equal represent methylidene; R
5Represent methylidene.
The invention provides a kind of compound of logical formula II,
Wherein n represents an integer between the 0-5; Each R represents halogen atom, nitro, cyano group, hydroxyl, alkyl, alkylhalide group, alkoxyl group, the halogen alkoxyl group, amino, alkylamino, dialkylamino, carbalkoxy, carboxyl, alkyloyl, alkylthio, alkyl sulfinyl, alkane alkylsulfonyl, formamyl, alkyl amide, cycloalkyl or phenyl; R
1And R
2Represent hydrogen atom or alkyl respectively; R
5Represent hydrogen atom or alkyl or cycloalkyl; Condition is to work as R
1And R
2Be hydrogen atom and R
5During represent methylidene, n is not 0 and R representation methoxy (n is 1 o'clock) not.
When any above-mentioned substituting group representative or when containing alkyl substituent, this substituting group can be straight chain or branching, and can contain below 12, preferably below 6, the carbon atom below 4 particularly.Naphthenic substituent can contain 3-8,3-6 carbon atom preferably.
Recommend R
1And R
2Represent hydrogen atom or C respectively
1-4Alkyl, particularly methyl.
R is halogen preferably, particularly the chlorine atom.
R
5Also preferably represent hydrogen atom or C
1-6Alkyl.
In the formula II compound family of special recommendation, n is 1, and R represents the chlorine atom, preferably is substituted on the 4-position of phenyl ring R
1And R
2All represent hydrogen atom or equal represent methylidene; R
5Represent methylidene.
The present invention also provides a kind of method for preparing above-mentioned formula II compound, and the solvent that this method is included in general formula (V) exists down,
(R wherein
5Definition is as above), make the compound that leads to formula III
(n wherein, R, R
1And R
2Definition as above, and X and Y represents halogen, chlorine or bromine atom preferably) react with logical formula IV compound
R wherein
5Definition as above and M represent basic metal, sodium atom preferably.
Best, R
5Has the same definition in formula IV and the formula V.For example, if formula IV compound is sodium methylate, the solvent of formula V methyl alcohol preferably then.
Be reflected at 0 ℃-room temperature and adopt excessive slightly formula IV compound to compare favourable.
Another aspect of the present invention provides the compound of logical formula III:
Wherein n represents an integer between the 0-5; Each R represents halogen atom, nitro, cyano group, hydroxyl, alkyl, alkylhalide group, alkoxyl group, the halogen alkoxyl group, amino, alkylamino, dialkylamino, carbalkoxy, carboxyl, alkyloyl, alkylthio, alkyl sulfinyl, alkane alkylsulfonyl, formamyl, alkyl amide, cycloalkyl or phenyl; R
1And R
2Represent hydrogen atom or alkyl respectively; X and Y represent halogen atom respectively.
When any above-mentioned substituting group representative or when containing alkyl substituent, this substituting group can be straight chain or branching and can contain below 12, preferably below 6, the carbon atom below 4 particularly.Naphthenic substituent can contain 3-8, best 3-6 carbon atom.
Recommend R
1And R
2Represent hydrogen atom or C respectively
1-4Alkyl, particularly methyl.
Best, R represents halogen, particularly the chlorine atom.
Also recommend X and Y to represent chlorine atom or bromine atoms.
In the formula III compound family of special recommendation, n is 1, and R represents the chlorine atom, preferably is substituted on the 4-position of phenyl ring R
1And R
2All represent hydrogen atom or equal represent methylidene; X and Y all represent bromine atoms.
The present invention also provides a kind of method for preparing above-mentioned formula III compound, and this method comprises the compound that makes logical formula VI
(n wherein, R, R
1And R
2Definition is as above) wherein X and Y definition is as above with compounds X Y() reaction.
This method can be carried out in the presence of solvent.Suitable solvent comprises oil, lower alcohol (as methyl alcohol), hydrochloric ether (as tetracol phenixin), ether and acetic acid.
According to the character (if solvent exists) of solvent, reaction should be carried out under-10 ℃ of one room temperature.The temperature of recommending is 0 a ℃-room temperature.
Formula VI compound can prepare by the following method easily: in the presence of a kind of alkali, make general formula (VII) compound
(R wherein
1And R
2Definition is as above) react with general formula (VIII) compound
Wherein n and R definition as above.
Suitable alkali comprises metal hydroxides or carbonate, as sodium hydroxide, potassium hydroxide, yellow soda ash and salt of wormwood.
To carry out this method under the condition of solvent more favourable existing.Suitable solvent comprises water and lower alcohol.
According to the character (if solvent exists) of solvent, reaction should be carried out between 20 ℃-100 ℃.
The formula IV, V, the compound of VII and VIII and compounds X Y are known compounds, they can be by the similar operation preparation of known method.
Formula I, II and III compound are the cyclopentane derivatives useful as intermediates that preparation has the general formula (IX) of fungicidal activity,
N wherein, R, R
1And R
2The definition as above and A represent nitrogen-atoms or CH base.The compound of some formula IX is the theme material of common pending application application GB-A2-2180236 and EP-A2-0267778.
The disclosed compound of EP-A2-0267778 and GB-A1-2180236 exists with two kinds of stereoisomeric forms in any ratio, and they have following structure:
Letter A and will being used for below the B represents to have the compound with the same three-dimensional chemical configuration of above isomer A and B.
Isomer A can separate by for example chromatography with B, and demonstrates different fungicidal activities.In general, the fungicidal activity of the isomer of formula IX A higher than formula IX B isomer.In order to from the formula I, the method for the compounds accepted way of doing sth IX A compound of II and III provides in following reaction scheme:
In above reaction scheme, n, R, R
1, R
2, R
5, X, Y and A as defined above, R
3The alkyl or aryl of replacement, preferably C are selected in representative
1-4Alkyl or phenyl, they are respectively in order to one or more substituting groups selection replacements down: halogen atom, nitro, cyano group, hydroxyl, C
1-4Alkyl, C
1-4Alkylhalide group, C
1-4Alkoxyl group, C
1-4The halogen alkoxy amino, C
1-4Alkylamino, two-C
1-4Alkylamino, C
1-4Carbalkoxy, carboxyl, C
1-4Alkanoyloxy, C
1-4Alkylthio, C
1-4Alkyl sulfinyl, C
1-4The alkane alkylsulfonyl, formamyl, C
1-4Alkyl amide, C
3-8Cycloalkyl and phenyl, Q are represented hydrogen or basic metal, sodium atom preferably.Processing step in midbody compound and the above-mentioned reaction scheme is not a part of the present invention, but common pending application application T616, T622, the theme of T623 and T626.
Below further specify the present invention with embodiment.
Embodiment 1
2-bromo-2-(α-bromo-4-benzyl chloride base)-5, and the preparation of 5-dimethylcyclohexanon (formula IV: n=1, R=4-Cl, R=R=CH, X=Y=Br)
(a) 2-(4-chlorine benzylidene)-5, the preparation of 5-dimethylcyclohexanon
With 3, the mixture of 3-dimethylcyclohexanon (34 grams, 0.27 mole) and 4-chlorobenzaldehyde (38 grams, 0.27 mole) and water (100ml) refluxed 24 hours (containing sodium hydroxide, 5.4 grams, 0.21 mole).After the cooling, mixture obtains 48 gram 2-(4-chlorine benzylidenes with toluene extraction and flash distillation after methanol crystallization)-5, the 5-dimethylcyclohexanon.Fusing point 85-86 ℃.Productive rate: 75%.
（b）
2-bromo-2-(α-bromo-4-benzyl chloride base)-5, the preparation of 5-dimethylcyclohexanon
The 2-(4-chlorine benzylidene that 5 grams (0.02 mole) are obtained in (a))-5, the 5-dimethylcyclohexanon is dissolved in the methylene dichloride (25ml) and is cooled to 5-10 ℃.In 5 minutes, add bromine (3.2 grams, 0.02 mole) and, restrain 2-bromo-2-(α-bromo-4-benzyl chloride bases with obtaining 5.5 after the methyl alcohol development with the gained solution flash)-5,5-dimethylcyclohexanon white solid.Fusing point 114-115 ℃.Productive rate: 67%.
Embodiment 2
1-(4-chlorine benzylidene)-3, and the preparation of 3-dimethyl-2-methoxycarbonyl pentamethylene (formula II: n=1, R=4-Cl, R=R=CH, R=CH)
Restrain 2-bromo-2-(α-bromo-4-benzyl chloride base that (0.012 mole) embodiment 1 obtain with 5)-5, the 5-dimethylcyclohexanon is dissolved in the 7ml methylene dichloride, and this solution is added 0.7 gram (0.03 grammeatom) is dissolved in the sodium of methyl alcohol (50ml) (in 0-5 ℃).After 10 minutes, add acetic acid (1.8 grams, 0.03 mole), mixture layering between gasoline and water in 5 ℃.Obtain 3.25 gram crude products after the processing, through the GC analysis revealed, this crude product contains 2.57 gram 1-(4-chlorine benzylidenes)-3,3-dimethyl-2-methoxycarbonyl pentamethylene.Productive rate: 75%.The structure of product is confirmed by the NMR spectrum.
Embodiment 3
1-(4-chlorine benzylidene)-3, preparation (formula II: n=1, R=4-Cl, the R of 3-dimethyl-2-methoxycarbonyl ring penta-1-alkene
1=R
2=CH
3, R
5=CH)
With the crude product 1-(4-chlorine benzylidene that obtains among the embodiment 2)-3,3-dimethyl-2-methoxycarbonyl pentamethylene refluxed 15 minutes in the methyl alcohol (20ml) that contains dissolved sodium (0.3 gram), obtain 1-(4-benzyl chloride base)-3,3-dimethyl-2-methoxycarbonyl ring penta-1-alkene oily matter.
Embodiment 4
1-(4-benzyl chloride base)-3, and the preparation of 3-dimethyl-2-methoxycarbonyl ring penta-1-alkene (formula II: n=1, R=4-Cl, R=R=CH, R=CH)
(a) 2-bromo-2-(α-bromo-4-benzyl chloride base)-5, the preparation of 5-dimethylcyclohexanon
10 grams (0.04 mole) press embodiment 1(a) the 2-(4-chlorine benzylidene for preparing)-5, the 5-dimethylcyclohexanon is dissolved in the 50ml methylene dichloride and is cooled to 5-10 ℃.In 5 minutes, add bromine (6.4 grams, 0.04 mole), obtain 2-bromo-2-(α-bromo-4-benzyl chloride base)-5,5-dimethylcyclohexanon solution.
(b) 1-(4-benzyl chloride base)-3, the preparation of 3-dimethyl-2-methoxycarbonyl ring penta-1-alkene
In 5-10 ℃ and 15 minutes, the reaction mixture that obtains in (a) is added to 2.8 grams (0.12 grammeatom) is dissolved in the solution of the sodium in the 150ml methyl alcohol.After 20 minutes, mixture is warmed up to 48 ℃ refluxed 30 minutes.Flashed solvent, resistates layering between gasoline and water obtains 11.4 gram crude products after the evaporation, through the GC analysis revealed, this crude product contains 7.25 gram 1-(4-benzyl chloride bases)-3,3-dimethyl-2-methoxycarbonyl ring penta-1-alkene.Productive rate: 67%.The structure of product confirms with the NMR spectrum.
Claims (7)
1, a kind of method for preparing logical formula I compound,
Wherein n represents an integer between the 0-5; Each R represents halogen atom, nitro, cyano group, hydroxyl, alkyl, alkylhalide group, alkoxyl group, the halogen alkoxyl group, amino, alkylamino, dialkylamino, carbalkoxy, carboxyl, alkyloyl, alkylthio, alkyl sulfinyl, alkane alkylsulfonyl, formamyl, alkyl amide, cycloalkyl or phenyl; R
1And R
2Represent hydrogen atom or alkyl respectively, R
5Represent hydrogen atom or alkyl or cycloalkyl, condition be when n be 0 and R
1And R
2When all representing hydrogen atom, R
5Do not represent hydrogen atom or methyl, this method is included in polar solvent and has down the compound of the logical formula II of heating
Or the compound of logical formula III
(n wherein, R, R
1, R
2And R
5Definition as above, X and Y represent halogen atom respectively) with the compound of logical formula IV
R wherein
5Define as above, M represents alkali metal atom.
2, according to the process of claim 1 wherein that polar solvent is the compound of logical formula V
R wherein
5By definition in the claim 1.
3, a kind of method for preparing the compound of logical formula II,
Wherein n represents an integer between the 0-5; Each R represents halogen atom, nitro, cyano group, hydroxyl, alkyl, alkylhalide group, alkoxyl group, the halogen alkoxyl group, amino, alkylamino, dialkylamino, carbalkoxy, carboxyl, alkyloyl, alkylthio, alkyl sulfinyl, alkane alkylsulfonyl, formamyl, alkyl amide, cycloalkyl or phenyl; R
1And R
2Represent hydrogen atom or alkyl respectively; R
5Represent hydrogen atom or alkyl or cycloalkyl; Condition be when n be 0 and R
1And R
2When all representing hydrogen atom, R
5Do not represent hydrogen atom or methyl, the polar solvent that this method is included in logical formula V exists down,
(R wherein
5Definition is as above) make the compound of logical formula III
(n wherein, R, R
1And R
2Definition as above, and x and y are by definition in the claim 1) with logical formula IV compound reaction
R wherein
5Define as above, M is by definition in the claim 1.
4, according to the method for claim 2 or 3, wherein R has definition equally in general formula IV and the V.
5, a kind of method for preparing logical formula III compound,
Wherein n represents an integer between the 0-5; Each R represents halogen atom, nitro, cyano group, hydroxyl, alkyl, alkylhalide group, alkoxyl group, the halogen alkoxyl group, amino, alkylamino, dialkylamino, carbalkoxy, carboxyl, alkyloyl, alkylthio, alkyl sulfinyl, alkane alkylsulfonyl, formamyl, alkyl amide, cycloalkyl or phenyl; R
1And R
2Represent hydrogen atom or alkyl respectively; X and Y are by definition in the claim 1, and this method comprises makes logical formula II compound
(n wherein, R, R
1And R
2Definition is as above) and compounds X, Y reaction (wherein X and Y definition is as above).
6, according to the compound of general formula II of definition in the claim 3.
7, according to the compound of general formula III of definition in the claim 5.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8822383.9 | 1988-09-23 | ||
| GB888822384A GB8822384D0 (en) | 1988-09-23 | 1988-09-23 | Cyclohexanone derivatives |
| GB888822387A GB8822387D0 (en) | 1988-09-23 | 1988-09-23 | Halocyclohexanone derivatives |
| GB8822387.0 | 1988-09-23 | ||
| GB8822386.2 | 1988-09-23 | ||
| GB8822384.7 | 1988-09-23 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93117707A Division CN1035002C (en) | 1988-09-23 | 1993-09-21 | Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives |
| CN93117706A Division CN1042222C (en) | 1988-09-23 | 1993-09-21 | Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041356A true CN1041356A (en) | 1990-04-18 |
| CN1024661C CN1024661C (en) | 1994-05-25 |
Family
ID=26294430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89107404 Expired - Fee Related CN1024661C (en) | 1988-09-23 | 1989-09-21 | Process for preparing derivative of cyclopentene, cyclopentane and cyclohexane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1024661C (en) |
-
1989
- 1989-09-21 CN CN 89107404 patent/CN1024661C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1024661C (en) | 1994-05-25 |
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