前苏联专利SU1416058A3 Method of producing azol compounds, or their acid-additive salts, or their esters or ethers

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专利摘要:
The invention provides novel alpha -aryl- or -aralkyl- alpha -(cycloalkyl-alkyl)-1H-azole-1-ethanols, in which the alkyl moiety linking the cycloalkyl group to the ethanol group is substituted or branched at the carbon atom adjacent to the C(OH) group, which are useful as plant fungicides and for treating fungus diseases in man and animals. Other objects of the invention are plant fungicidal, pharmaceutical and veterinary compositions comprising such novel compounds and methods of combatting phytopathogenic fungi or fungus diseases with the aid of said novel compounds.
公开号:SU1416058A3
申请号:SU843707140
申请日:1984-03-02
公开日:1988-08-07
发明作者:Шауб Фритц
申请人:Сандос Аг (Фирма)；
IPC主号:

专利说明:

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This invention relates to a process for the preparation of new azoles having antimycotic properties.
The purpose of the invention is a method of obtaining new compounds with a higher fungicidal activity as compared with a structural analogue having the same type of activity. All temperatures are shown in degrees Celsius. Rf values for SILKA gel.
Example 1. 2- (Chlorophenyl) -3-cyclopropyl-1-1H- (1, .2, 4-triazol-1-yl) butan-2-ol.
Stade 1.
7.6 g of 1- (4-chlorophenyl) -2-cyclopropyl-propanone-1 is dissolved in 120 ml of dry toluene, at a surrounding temperature up to 28.6 g of dodecyldimethylsulfonmethyl sulfate are added and the suspension is stirred for 15 minutes. 6.3 g of sputtered KOH are added to it and the reaction mixture is stirred for 18 hours at 35 ° C. The reaction mixture is cooled, poured onto ice, and after adding a certain amount of diethylformamide, it is extracted with diethyl ether. The organic extracts are washed three times with water and then with a saturated aqueous solution of NaCl, dried over MgSO4 and evaporated in vacuo. The oily residue obtained contains 2- (4-hporpenyl) -2- (1-cyclopropylethyl) -oxirane (ethylene oxide), along with dodecylmethyl sulfide and decene-1.
Stage 2. The crude oxirane reaction product from stage 1 is added dropwise to a mixture of 4.2 g of 1,2,4-three azole and 15.4 kg in 80 ml of dry dimethylformamide (DMF) at 90 ° C, and this mixture is stirred at 90 ° C for 2 hours. After cooling, the reaction mixture is poured onto ice and extracted with diethyl ether, the organic extracts are washed with water and saturated aqueous NaCl solution, dried over MgSO4 and freed from solvent. Chromatography of the residue on silica gel using hexane / ethyl acetate gives an oily, colorless signal (diastereon mixture) which slowly crystallizes. Recrystallization of crystallized from hexane-CH Cl gives the title, in the form of dia
five
0
five
0
five
0
five
0
five
steriomeric mixture, colorless crystals with m.pl, 100-101 ° C.
The Rf values in the thin layer chromatogram (on a silica gel plate-plate using ethyl acetate as the mobile phase) for diastereomer A 0.30, for the diastereomer B Oj38. By repeated chromatography on silica gel with diethyl ether / acetate (99: 1) and diethyl ether / ethyl g acetate 99: 1 to 90:10, followed by crystallization from hexane / SC C, the diastereomeric mixture is separated on pure diastereomers:
a) diastereomer And so pl. l69-lTo C;
b) diastereomer-B, mp 125-127 ° C;
c) A mixture of 2.0 g of p-toluenesulfonic acid monohydrate in 50 ml of toluene is concentrated to a volume of 6 ml. A solution of 2.8 g of 2- (4-chlorophenyl) -3-cyclopropyl-1- (1H-1,2,4-triazol-1-yl) -butane-2 is added dropwise with stirring and at room temperature. -ol (diastereomeric mixture) in 35 ml of toluene at absolute temperature. Allow the reaction mixture to stand until crystallization. After adding 20 ml of diethyl ether to the crystallized toluene in the mixture, the mixture is stirred for 30 minutes, filtered, washed with diethyl ether and dried at 60 ° C under high vacuum, mp. 170-17GS.
Similarly, the following salts of the diastereomeric mixture of the title compound are obtained:
g) hydrogenoxalate, so pl. 180-182 Cj
e) hydrochloride, t.pl.190-200 ° C.
EXAMPLE 2. 2- (4-Chlorfensch1) -3-cyclopropyl-3-methyl-1- (1H-1 2,4-triazol-1-Sh1) -butan-2-ol.
1- (4-chlorophenyl) -2-cyclopropyl-2-methyl-propane-1-one reacts as in Example 1 (steps 1 and 2). Purification of the title compound is carried out by crystallization from hexane to obtain colorless crystals with m.p. 88-90 ° C (racemate of the title compound).
Example 3. Analogously to Example 1 (Stage 2), the following compounds are obtained (Tables 1 and 2) by reacting an azole with the desired oxirane (ethylene oxide).
EXAMPLE 4 2- (4-Chlorfensch1) -2- (1-cyclopropyl-cyclopropyl) -1- (1H-1,2,4-triazol-1-yl) -ethanol-2-ol.
Stage 1.
314
A suspension of 5.1 g of 80% NaH in 50 ml of absolute tetrahydrofuran (THF) is stirred under a layer of nitrogen, 13.3 g of dimethyl sulfoxide (DMSO) are added dropwise to it at room temperature and then 13.5 g -chlorophenyl- (1-cyclopropyl-cyclopropyl) ketone in 50 ml of absolute THF. To the obtained fresh suspension, 15.0 g of iodotrimethylsulfonium is added in portions. The suspension is stirred for 16 hours at room temperature and for 3 hours at 50 ° C and then cooled to 0-25 ° C. Water is added dropwise and the reaction mixture is extracted with diethyl ether after the completion of the exothermic reaction.
The organic phase of the trizvda is washed with water and once with an aqueous solution of NaCl, dried over MgSO4 and evaporated in vacuo at 60 ° C. The residue consists mainly of 2- (4-chlorophenyl) 2- (1-cyclopropyl-cyclopropyl) oxyrane.
Stage 2.
The crude oxirane (from stage 1) reacts with 1,2,4-triazole as in Example 1 (step 2) and gives, after chromatography on silica gel and crystallization from hexane / CH СХг, a pure title compound, m.p. 110-112 ° C (racemate form).
EXAMPLE 5 2- (4-Chlorfensch1) -3-cyclopropyl-2-methoxy-3-methyl-1- (1H-1,2,4-triazol-1-yl) - butane.
. To a suspension of 0.8 rNaH 80% in 25 ml of DMF is added dropwise at room temperature a solution of 7.64 g of 2- (4-chloro-phenol) -3-cyclopropyl-3 methyl-1- (1H-. 1.2 , 4-triazol-1-yl) butan-2-ol in 50 ml of DMF. The reaction mixture was stirred at 40 ° C for 30 minutes. Then, 3.76 g of CH, is added dropwise at 50 ° C. The mixture is stirred for 18 hours at 20 ° C, then 1 liter of water is poured out and extracted with. The organic phases are washed with water, dried over MgSO4 and concentrated by continuous flash evaporation. Then the title compound is obtained by chromatography of the precipitate on silica gel (mobile phase diethyl ether: triethylamine 10: 2) in the form of white crystals, i.e. 87-89 C.
EXAMPLE 6. 2- (4-Chlorofentsch) -3-cyclopropyl-2-allyloxy-3-methyl-1- (1H-1,2,4-triazol-1-yl) -butane.
eight
The title compound is prepared analogously to example 5, except that allyl bromide is used instead of CHj, and the reaction mixture is stirred for 18 hours at a temperature of not 70, but 70 ° C, mp. 58 - (white crystals).
. Example 7. 2- (4-Chlorophenyl) -3cyclopropyl-2-benzyloxy-3-methyl-1 (H-1,2,4-triazol-1-yl) -butane.
The title compound is prepared in the same way as Example 6, except that benzyl bromide is used instead of allyl bromide, m.p. 130 - 132 С (white crystals).
EXAMPLE 8. 2- (4-5Spophenyl) -3-cyclopropyl-2-acetoxy-3-methyl-1- (1H-1,2, A-triazol-1-yl) -butane.
The title compound is prepared analogously to Example -5, except that acetyl chloride is used; (instead of CHj) and that the reaction mixture is stirred for 24 hours at 70 C.
It crystallizes from diethyl ether, mp 117-119 C (yellow crystals). . Example 9. 1- (4-Chlorophenyl) -2-cyclopropyl-propynon-1.
15 g of 4-chlorophenylcyclopropyl methyl ketone, dissolved in 80 ml of absolute DMF, are added dropwise to a suspension of 2.6 g of 80% NaH in 30 ml of DMF under an N layer and the mixture is stirred for 2 hours at. To it is added dropwise for 15 minutes at room temperature and cooling 15.3 g of CHjI, the mixture is stirred for 15 minutes at 25-30 ° C after the addition of cold water is placed in
ether Organic extracts are washed with water and saturated aqueous NaCl solution, listened to MgSO4 and evaporated to obtain a crude title compound, which is purified by hexane / ethyl acetate 98/2 by chromatography on silica gel.
4 Chlorophenyl- (cyclopropylmethyl) - ketone is obtained by oxidation according to Jones of the corresponding alcohol by means of CgO, in an aqueous solution of HjSO / acetone
PRI me R 10. 1- (4-Chlorophenyl) -2- (cyclopropyl-2-methyl-propanone-1),
Proceed analogously to Example 9, using 2.4 equivalents of NaH and 3 equivalents of CHjI.Ha equivalent of 4-chlorophenylcyclopropyl methyl ketone. The title compound was chromatographed on silica gel using a fraction
hexane / ethyl acetate (99: 1) 9 15390.
Example 11. 4-Chlorophenyl- (1-c iclopropyl-cyclopropyl) -ketone,
A suspension of 4 g of 80% NaH in 40 ml of absolute THF is stirred over a layer of N. To it is added dropwise.
23.3 g of 4-chlorophenyl (cyclopropic 1-m-1) ketone in 250 ml of absolute THF. Then, 15.8 g of phenyl vinyl sulfoxide is slowly added at 20 ° C using a syringe (exothermic reaction), and the mixture is stirred for 2.5 hours at 20-30 ° C. The resulting intermediate (sulfuric alkyl oxide) is cyclized to the title compound by stirring for 18 hours in countercurrent. The reaction mixture is cooled to O - (-5) ° C, then 200 ml of water is added dropwise and the mixture is extracted with diethyl ether. The organic phase is washed three times with water and once with a saturated aqueous solution of NaCl, dried over MgSO4 and evaporated at 60 ° C under vacuum.
A pure title compound is obtained by chromatography of the residue on silica gel with hexane / ethyl acetate (89; 1 15605.
Example 12. The title compound of Example 9 can also be obtained, taken as the starting 4-chloro-benzyl amide, by reacting it with cyclopropyl methyl ketone in the presence of NaH, reducing the resulting 1- (4-chloro-phenyl) -1-cyano-2 -cyclopropyl-propene 1 with Mg (CH, OH) in 1- (4-chlorophenyl) -1-cyano-2-cyclopropyl propane, followed by oxidation with a cyano compound under alkaline conditions in the presence of a phase transfer catalyst. Depending on the situation (price, environment, etc.), the method of this example may be preferable.
The use of biological actin - fungicidal action.
Greenhouse test results.
The given test results (according to known procedures) show the beneficial fungicidal action of the proposed compounds. The standard is oC -cyclohexylmethyl-ei- (p-methylphenyl) -1H-1,2,4-tri azole-1-ethanol. Results are expressed
in the EU 90, i.e. concentrate and provide 10
15
41605Y6
able to control 90% of the fungal disease after application by spraying (Table 3).
Disease control in the field.
The fungicidal action of the compound of Example 1 was evaluated in field conditions. wih: 62 g / ha provided the ability to control more than 90% of powdered powdery powdery mildew of grapes and control of 90% of rust contamination of cereals, and 2.6 g / ha of powder controly powdery mildew in the vineyards.
Other evaluations show the fungicidal activity of the compound of Example 1, namely equivalent or better.
20 action than propicanozole against powdery powdery mildew on cereals and cucumbers, as well as against powdery powdery mildew on blonx and grapes against
25 venturi on blon x, respectively, is better than triadimefon, for example, against rust on coffee.

权利要求:
Claims (1)
[1]
Invention Formula
The method of obtaining azoles of the general formula
CR,
where R is C.-Cy-alkyl or cyclopropyl; R, j is hydrogen or C, -C5-alksh1;
R, p R. Together - CH, CH2;
R is halogen;
R is hydrogen or halogen;
Y - ::: CH or: N;
or their acid addition salts, their ethers or esters, of which is a compound of the general formula
rj
H
where Y has the indicated meanings, is reacted with an oxirane of the general formula
U160588
in an inert organic solvent, such as dimethylformamide, at a temperature from room temperature to boiling of the reaction mass in the presence and release of the desired product in free form or in translation, where R and R have the indicated values; house in simple or complex ether.
r-n n he
i
H2-C

CH -CsCH
CH,
Cyclopropyl
The same
H
sn
4-C1 4-C1
Propyl 4-C1 H 4-C1 H CH
eleven
C, H
sn.
sn.
sn.
CH,
sn.
CH,
CH,
CH,
CH,
CHj
CHj
CH,
H
H
H
H
sn
CH,
CH,
Sis
H
H
CH,
H
4-C1 4-C1 4-C1 4-C1
4-CHj
4-CH5
4-CH,
4-CH,
4-CH,
4-CH50
4-CH, 0
2,4-di 2,4-di 2,4-di
2-CH5Table 1
R
CR,
4-C1 4-C1
Saw 4-C1 4-C1
4-C1 4-C1 4-C1 4-C1
4-CHjS
4-CH5S
4-CH,
4-CH,
4-CH,
4-CH50
4-CH, 0
2,4-diCl 2,4-diCl 2,4-diCl
N N N N
CH N CH N N CH. N N CH N CH N CH N
84-86 171.5-173.5
113-117
141-142
2-CH54-CHjS N
W
C, H, -cyclopropyl.
Diastereomeric mixture
I m
Diastereomer A.
eleven
Diastereomeric mixture.
1416058
table 2
12
Table 3

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

CH1196/83A|CH658654A5|1983-03-04|1983-03-04|AZOLE DERIVATIVES, METHOD FOR THEIR PRODUCTION AND MEANS THAT CONTAIN THESE COMPOUNDS.|

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