CN102408386A - Preparation method of 2,4-disubstituted-2H-1, 2, 3-triazole derivatives - Google Patents

Preparation method of 2,4-disubstituted-2H-1, 2, 3-triazole derivatives Download PDF

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CN102408386A
CN102408386A CN2011102120521A CN201110212052A CN102408386A CN 102408386 A CN102408386 A CN 102408386A CN 2011102120521 A CN2011102120521 A CN 2011102120521A CN 201110212052 A CN201110212052 A CN 201110212052A CN 102408386 A CN102408386 A CN 102408386A
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triazole
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acetate
replacement
propyl
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CN102408386B (en
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江岳恒
阙利民
蔡彤�
林志刚
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ABA Chemicals Corp
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D249/00Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/041,2,3-Triazoles; Hydrogenated 1,2,3-triazoles
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Abstract

The invention discloses a preparation method of 2,4-disubstituted-2H-1,2,3-triazole derivatives and particularly relates to a preparation method of 2-substituted-2H-1,2,3-triazole-4-carboxylic acid compounds and 2-substituted-2H-1,2,3-triazole-4-boric acid compounds. The preparation method is simple and feasible and the obtained compounds have high yield.

Description

2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate
Technical field
The present invention relates to the organic synthesis intermediate preparing technical field, relate in particular to new compound 2,4-two replacement-2H-1,2,3-triazole verivate and preparation method thereof.Further, the present invention relates to new compound 2-replacement-2H-1,2,3-triazole-4-carboxylic acid and 2-replacement-2H-1,2,3-triazole-4-boric acid and preparation method thereof.
Background technology
2,4-two replacement-2H-1,2,3-triazole verivate is one type of novel compound with huge exploitation value.The compound that with the triazole is parent nucleus has potential widely using value, is the important intermediate of present many medicines, weedicide and agrochemical compound, also is pharmacophoric group main in a lot of drug molecules.
2-replacement-2H-1,2,3-triazole-4-carboxylic acid and 2-replacement-2H-1,2,3-triazole-4-boric acid is novel active intermediate, can be used as very important active precursor, in organic synthesis, is applied.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of novel 2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate; Further, the present invention provides 2-replacement-2H-1, and 2; 3-triazole-4-carboxylic acid and 2-replacement-2H-1,2, the preparation method of 3-triazole-4-boric acid.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the present invention adopts is following:
2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate is characterized in that: 2,4-two replacement-2H-1,2,3-triazole verivate has following structure:
Figure BDA0000078974510000011
Formula I
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl; R2 representes carboxyl or boronate.
When R2 is carboxyl, described 2,4-two replacement-2H-1,2,3-triazole verivate is 2-replacement-2H-1,2,3-triazole-4-carboxylic acid (formula II);
Formula II
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
When R2 is boronate, described 2,4-two replacement-2H-1,2,3-triazole verivate is 2-replacement-2H-1,2,3-triazole-4-boric acid (formula III).
Figure BDA0000078974510000022
Formula III
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
Compound II of the present invention can be prepared by compound VIII.
Figure BDA0000078974510000023
Formula VIII
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
The preparation method of compound VIII has had detailed description in applicant's No. 201110166067.9 patented claim.
Compound VIII of the present invention is dissolved in mass volume ratio 1: 1~100, in preferred 1: 5~20 the organic solvent, adds 0.1~50%, the metal catalyst of preferred 0.5~10% weight ratio; Feed hydrogen, keep pressure 1~100atm, preferred 1~10atm; At 0~200 ℃, preferred 10~50 ℃, reacted 1~50 hour; At room temperature filter, be evaporated to driedly, enriched material obtains compound II through recrystallization;
Described organic solvent is the mixing of one or more arbitrary proportions in alcohols or the fatty acid ester; Comprise the mixing of one or more arbitrary proportions in methyl alcohol, ethanol, propyl alcohol, Virahol, propyl carbinol, the trimethyl carbinol, Pentyl alcohol, primary isoamyl alcohol, ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and the amyl propionate, ethyl acetate, methyl alcohol;
Described metal catalyst is that in palladium metal, ruthenium, the platinum one or more are carried on the charge capacity of processing on gac, aluminum oxide or the Zeolite support is 1~10% catalyzer, preferred 5~10% palladium charcoal.
Reaction formula is as follows:
Figure BDA0000078974510000031
Compound I of the present invention can also be prepared by compound VI.
Formula VI
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
Compound VI of the present invention is dissolved in mass volume ratio 1: 2~20 ether, THF or 1, the 4-dioxane is cooled to-20~30 ℃; Add isopropylmagnesium chloride-lithium chloride mixture, stirred 0.5~5 hour, be cooled to-50~20 ℃; Fed dioxide gas about 10~30 minutes, and be warming up to room temperature, regulate pH=1~5 with hydrochloric acid after; Use organic solvent extraction; Through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying, be evaporated to driedly, enriched material obtains compound II through recrystallization;
Compound VI of the present invention is dissolved in mass volume ratio 1: 2~20 ether, THF or 1, the 4-dioxane is cooled to-20~30 ℃; Add isopropylmagnesium chloride-lithium chloride mixture, stirred 0.5~5 hour, be cooled to-50~20 ℃; Add compound boric acid ester (formula IX), stirred 0.1~2 hour, be warming up to room temperature; After regulating pH=1~5 with hydrochloric acid, use organic solvent extraction, through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying; Be evaporated to driedly, enriched material obtains the compound formula III through recrystallization;
Formula IX
Wherein, R3 representes the straight or branched alkyl of C1~C5, comprises methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl.
The mol ratio of compound VI of the present invention and isopropylmagnesium chloride-lithium chloride mixture is 1: 0.8~2.0, preferred 1: 1.2~1.5; The mol ratio of compound VI and boric acid ester (formula IX) or carbonic acid gas is 1: 1~10, preferred 1: 1.2~2; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester or the ethers; Comprise the mixing of one or more arbitrary proportions in ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, ether, propyl ether, isopropyl ether, the MTBE, ethyl acetate, MTBE.
Compound VI and grignard reagent isopropylmagnesium chloride-lithium chloride mixture generation format exchange reaction generates compound VII.
Compound VII need not separate, and directly formats reaction with carbonic acid gas or boric acid ester again, generates compound II or compound formula III.
Reaction formula is as follows:
Figure BDA0000078974510000051
Isopropylmagnesium chloride of the present invention-lithium chloride mixture is the tetrahydrofuran solution of its different volumetric molar concentrations, and commercially available concentration is generally 1.0~1.3 mol.
Compound VI of the present invention is prepared by compound IV.
Figure BDA0000078974510000052
Formula IV
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
The preparation method of compound IV has had detailed description in applicant's No. 201110166067.9 patented claim.
Compound IV of the present invention is dissolved in mass volume ratio 1: 2~20 ether, THF or 1, the 4-dioxane is cooled to-78~0 ℃; Add isopropylmagnesium chloride, stirred 0.1~2 hour, add the water of mass ratio 1: 1~20; After regulating pH=1~5 with hydrochloric acid, use organic solvent extraction, through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying; Be evaporated to driedly, obtain compound VI.
The mol ratio of compound IV of the present invention and isopropylmagnesium chloride is 1: 0.8~1.2, preferred 1: 1~1.1; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester or the ethers; Comprise the mixing of one or more arbitrary proportions in ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, ether, propyl ether, isopropyl ether, the MTBE, ethyl acetate, MTBE.
Compound IV and the reaction of grignard reagent isopropylmagnesium chloride generation format exchange generate compound V.Compound V, direct and water reaction through aftertreatment, obtains compound VI.
Reaction formula is as follows:
Figure BDA0000078974510000061
Isopropylmagnesium chloride of the present invention is tetrahydrofuran solution, 2-methyltetrahydrofuran solution or the diethyl ether solution of its different volumetric molar concentrations, and commercially available concentration is generally 1.0~2.0 mol.
Compound I of the present invention also can be prepared by compound IV one kettle way, and midbody compound formula VI need not separate.Operation steps is following: compound IV is dissolved in mass volume ratio 1: 2~20 ether, THF or 1, and the 4-dioxane is cooled to-78~0 ℃, adds isopropylmagnesium chloride; Stirred 0.1~2 hour, and slowly added C1~C4 lower alcohol, stirred 0.5~1 hour; Under-20~30 ℃, add isopropylmagnesium chloride-lithium chloride mixture, stirred 0.5~5 hour; Be cooled to-50~20 ℃, feed about 10~30 minutes of dioxide gas or add compound boric acid ester (formula IX), stirred 0.1~2 hour; Be warming up to room temperature, regulate pH=1~5 with hydrochloric acid after, use organic solvent extraction; Through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying, be evaporated to driedly, enriched material obtains compound I through recrystallization.
The mol ratio of compound IV of the present invention and C1~C4 lower alcohol is 1: 0.8~1.2, preferred 1: 1~1.1; The lower alcohol of described C1~C4 comprises methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol or the trimethyl carbinol; The mol ratio of described compound IV and 1.3M isopropylmagnesium chloride-lithium chloride tetrahydrofuran solution is 1: 0.8~2.0, preferred 1: 1.2~1.5; The mol ratio of compound IV and boric acid ester (formula IX) or carbonic acid gas is 1: 1~10, preferred 1: 1.2~2; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester or the ethers; Comprise the mixing of one or more arbitrary proportions in ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, ether, propyl ether, isopropyl ether, the MTBE, ethyl acetate, MTBE.
One kettle way of the present invention prepares compound I, compares with the method for fractional steps, and total recovery can improve 3~10%.
The method of recrystallization of the present invention may further comprise the steps, and presses mass volume ratio 1: 1~100, preferred 1: 2~20 enriched material to be added in the organic solvent, and at-20~50 ℃, preferred 0~25 ℃ was stirred 0.5~24 hour, filtered, and vacuum-drying obtains pure article.
The used organic solvent of recrystallization of the present invention is the mixing of one or more arbitrary proportions in fatty acid ester, ketone, ethers and the hydro carbons; Comprise ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, acetone, 2-butanone, ketopentamethylene and pimelinketone, ether, propyl ether, isopropyl ether, MTBE and THF, 1; The mixing of one or more arbitrary proportions in 4-dioxane, sherwood oil, normal hexane, hexanaphthene, methylcyclohexane and the normal heptane, the mixed solvent of ethyl acetate or MTBE and normal hexane arbitrary proportion.
Of the present invention 2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate is simple, and the compound yield of acquisition is high.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explanation.
Embodiment 1:
Figure BDA0000078974510000071
With 10g (41.5mmol) 2-methyl-4,5-two bromo-2H-1,2, the 3-triazole is dissolved in the 100ml THF, is cooled to-15~-5 ℃, slowly adds 22.4ml (44.8mmol) 2M isopropylmagnesium chloride tetrahydrofuran solution, finishes, and continues reaction 0.5 hour.Slowly add 10ml water, temperature<-10 ℃, extract with the 100ml MTBE to pH=1~2 with the 1.0M hcl acidifying again; Organic layer is through anhydrous sodium sulfate drying, is evaporated to driedly, obtains 4-bromo-2-methyl-2H-1; 2,3-triazole 5.85g, yield 87%. 1H?NMR(CDCl 3,500MHz):δ7.52(s,1H),4.18(s,3H); 13C?NMR(CDCl 3,500MHz):δ135.4,42.3。
Embodiment 2:
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 10.6g (41.5mmol) 2-ethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-ethyl-2H-1,2,3-triazole 6.94g, yield 95%. 1H?NMR(CDCl 3,400MHz):δ7.52(s,1H),4.44(t,J=7.2Hz,2H),1.55(t,J=7.2Hz,3H); 13C?NMR(CDCl 3,400MHz):δ135.1,121.4,50.8,14.7。
Embodiment 3:
Figure BDA0000078974510000082
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 11.16g (41.5mmol) 2-n-propyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-n-propyl-2H-1,2,3-triazole 7.57g, yield 96%. 1H?NMR(CDCl 3,400MHz):δ7.52(s,1H),4.35(t,J=7.2Hz,2H),2.01-1.92(m,2H),0.92(t,J=7.4Hz,3H); 13CNMR(CDCl 3,400MHz):δ135.0,121.4,57.3,23.0,11.0。
Embodiment 4:
Figure BDA0000078974510000091
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 12.24g (41.5mmol) 2-cyclopentyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-cyclopentyl-2H-1,2,3-triazole 8.6g, yield 96%. 1H?NMR(CDCl 3,400MHz):δ7.50(s,1H),4.99-4.93(m,1H),2.18-2.13(m,4H),1.90-1.86(m,2H),1.71-1.68(m,2H); 13C?NMR(CDCl 3,400MHz):δ134.7,121.1,66.9,32.7,24.3。
Embodiment 5:
Figure BDA0000078974510000092
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 13.1g (41.5mmol) 2-phenmethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-phenmethyl-2H-1,2,3-triazole 9.48g, yield 96%. 1H?NMR(CDCl 3,400MHz):δ7.56(s,1H),7.267.38-7.32(m,5H),5.55(s,2H); 13C?NMR(CDCl 3,400MHz):δ135.8,134.5,128.9,128.6,128.2,122.2,59.4。
Embodiment 6:
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 13.7g (41.5mmol) 2-to methylbenzyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-to methylbenzyl-2H-1,2,3-triazole 10.25g, yield 98%. 1H?NMR(CDCl 3,400MHz):δ7.53(s,1H),7.23(ABq,J=8.0Hz,2H),7.15(ABq,J=8.0Hz,2H),5.69(s,2H),2.32(s,3H); 13C?NMR(CDCl 3,400MHz):δ138.5,135.7,131.5,129.6,128.3,122.0,59.2,21.2。
Embodiment 7:
Figure BDA0000078974510000101
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 14.4g (41.5mmol) 2-meta-methoxy phenmethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-meta-methoxy phenmethyl-2H-1,2,3-triazole 10.78g, yield 97%. 1H?NMR(CDCl 3,400MHz):δ7.56(s,1H),7.26(t,J=8.0Hz,1H),6.92-6.87(m,2H),6.85(s,1H),5.52(s,2H),3.79(s,3H); 13C?NMR(CDCl 3,400MHz):δ159.9,135.9,135.8,130.0,122.2,120.4,114.1,113.7,59.3,55.3。
Embodiment 8:
Figure BDA0000078974510000102
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 14.4g (41.5mmol) 2-to mehtoxybenzyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-to mehtoxybenzyl-2H-1,2,3-triazole 10.78g, yield 97%. 1H?NMR(CDCl 3,500MHz):δ7.54(s,1H),7.30(ABq,J=8.2Hz,2H),6.88(ABq,J=8.2Hz,2H),5.48(s,2H),3.79(s,3H); 13C?NMR(CDCl 3,500MHz):δ159.9,135.6,129.8,126.6,122.0,114.2,59.0,55.3。
Embodiment 9:
Figure BDA0000078974510000103
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 13.9g (41.5mmol) 2-to fluorobenzene methyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-to fluorobenzene methyl-2H-1,2,3-triazole 10.2g, yield 96%. 1H?NMR(CDCl 3,500MHz):δ7.56(s,1H),7.33(dd,J=5.7,8.2Hz,2H),7.03(dd,J=8.2,9.0Hz,2H),5.51(s,2H); 13C?NMR(CDCl 3,500MHz):δ162.8(d,J=246.0Hz),135.9,130.3(d,J=3.3Hz),130.2(d,J=8.3Hz),122.3,115.9(d,J=21.6Hz),58.6。
Embodiment 10:
Figure BDA0000078974510000111
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 14.58g (41.5mmol) 2-to chlorophenylmethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-to chlorophenylmethyl-2H-1,2,3-triazole 10.5g, yield 93%. 1H?NMR(CDCl 3,400MHz):δ7.56(s,1H),7.32(ABq,J=8.8Hz,2H),7.26(ABq,J=8.8Hz,2H),5.51(s,2H); 13C?NMR(CDCl 3,400MHz):δ136.0,135.2,132.9,129.6,129.1,122.4,58.6。
Embodiment 11:
Figure BDA0000078974510000112
Working method is with embodiment 1, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 16.64g (41.5mmol) 2-to trifluoromethoxy phenmethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 4-bromo-2-to trifluoromethoxy phenmethyl-2H-1,2,3-triazole 12.8g, yield 96%. 1H?NMR(CDCl 3,400MHz):δ7.58(s,1H),7.36(ABq,J=8.6Hz,2H),7.20(ABq,J=8.6Hz,2H),5.55(s,2H); 13C?NMR(CDCl 3,400MHz):δ149.4,136.0,133.1,129.8,122.5,121.3,120.4(q,J=256.0Hz),58.5。
Embodiment 12:
Figure BDA0000078974510000121
With 3.24g (20mmol) 4-bromo-2-methyl-2H-1,2, the 3-triazole is dissolved in the 50ml THF, at 10~20 ℃, slowly adds 18.5ml (24mmol) 1.3M isopropylmagnesium chloride-lithium chloride tetrahydrofuran solution.Finish, continue reaction 2 hours.Be cooled to below 0 ℃, fed dioxide gas about 10~30 minutes, temperature<15 ℃.At room temperature, to pH=1~2, with the extraction of 100ml MTBE, organic layer is evaporated to dried through anhydrous sodium sulfate drying again with the 1.0M hcl acidifying.Residual solid is dissolved in 5ml ETHYLE ACETATE, drips the 20ml normal hexane under the room temperature, continue to stir 1 hour, filter, room temperature vacuum-drying obtains 2-methyl-2H-1, and 2,3-triazole-4-carboxylic acid 1.78g, yield 70%. 1H?NMR(CD 3COCD 3,500MHz):δ8.07(s,1H),4.26(s,3H); 13CNMR(CD 3COCD 3,500MHz):δ161.7,141.0,137.4,42.6。
Embodiment 13:
Figure BDA0000078974510000122
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 3.52g (20mmol) 4-bromo-2-ethyl-2H-1,2,3-triazole.Obtain 2-ethyl-2H-1,2,3-triazole-4-carboxylic acid 2.1g, yield 74%. 1H?NMR(CDCl 3,400MHz):δ11.57(bs,1H),8.17(s,1H),4.62(t,J=7.2Hz,2H),1.64(t,J=7.2Hz,2H); 13C?NMR(CDCl 3,400MHz)δ165.3,138.9,137.4,51.1,14.6。
Embodiment 14:
Figure BDA0000078974510000123
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 3.8g (20mmol) 4-bromo-2-n-propyl-2H-1,2,3-triazole.Obtain 2-n-propyl-2H-1,2,3-triazole-4-carboxylic acid 2.45g, yield 79%. 1H?NMR(CD 3COCD 3,400MHz):δ8.12(s,1H),4.49(t,J=7.0Hz,2H),2.03-1.96(m,2H),0.92(t,J=7.4Hz,3H); 13C?NMR(CD 3COCD 3,400MHz)δ161.9,140.8,137.6,57.7,23.6,11.2。
Embodiment 15:
Figure BDA0000078974510000131
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 4.3g (20mmol) 4-bromo-2-cyclopentyl-2H-1,2,3-triazole.Obtain 2-cyclopentyl-2H-1,2,3-triazole-4-carboxylic acid 3.1g, yield 85%. 1H?NMR(CD 3COCD 3,400MHz):δ8.09(s,1H),5.15-5.09(m,1H),2.24-2.14(m,4H),1.90-1.86(m,2H),1.78-1.74(m,2H); 13C?NMR(CD 3COCD 3,400MHz):δ161.9,140.5,137.4,67.5,33.4,24.9。
Embodiment 16:
Figure BDA0000078974510000132
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 4.76g (20mmol) 4-bromo-2-phenmethyl-2H-1,2,3-triazole.Obtain 2-phenmethyl-2H-1,2,3-triazole-4-carboxylic acid 3.7g, yield 91%. 1H?NMR(CD 3COCD 3,400MHz):δ8.14(s,1H),7.39-7.33(m,5H),5.67(s,2H); 13C?NMR(CD 3COCD 3,400MHz):δ165.3,139.3,138.1,133.9,129.0,128.8,128.4,59.7。
Embodiment 17:
Figure BDA0000078974510000133
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.06g (20mmol) 4-bromo-2-to methylbenzyl-2H-1, and 2, the 3-triazole.Obtain 2-to methylbenzyl-2H-1,2,3-triazole-4-carboxylic acid 3.82g, yield 88%. 1H?NMR(CD 3COCD 3,400MHz):δ8.11(s,1H),7.28(ABq,J=8.0Hz,2H),7.19(ABq,J=8.0Hz,2H),5.66(s,2H),2.30(s,3H); 13C?NMR(CD 3COCD 3,400MHz):δ161.7,141.3,139.0,138.0,133.1,130.2,129.1,59.6,21.1。
Embodiment 18:
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.4g (20mmol) 4-bromo-2-meta-methoxy phenmethyl-2H-1,2,3-triazole.Obtain 2-meta-methoxy phenmethyl-2H-1,2,3-triazole-4-carboxylic acid 3.82g, yield 82%. 1H?NMR(CD 3COCD 3,400MHz):δ8.13(s,1H),7.29(t,J=8.0Hz,1H),6.95-6.90(m,3H),5.69(s,2H),3.78(s,3H); 13C?NMR(CD 3COCD 3,400MHz):δ161.7,160.9,141.4,138.1,137.5,130.7,121.1,114.8,114.5,59.7,55.6。
Embodiment 19:
Figure BDA0000078974510000142
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.4g (20mmol) 4-bromo-2-to mehtoxybenzyl-2H-1, and 2, the 3-triazole.Obtain 2-to mehtoxybenzyl-2H-1,2,3-triazole-4-carboxylic acid 4.2g, yield 90%. 1H?NMR(CD 3COCD 3,500MHz):δ8.10(s,1H),7.35(ABq,J=8.5Hz,2H),6.92(ABq,J=8.5Hz,2H),5.63(s,2H),3.78(s,3H); 13C?NMR(CD 3COCD 3,500MHz):δ161.7,160.8,141.2,138.0,130.7,128.0,114.9,59.4,55.6。
Embodiment 20:
Figure BDA0000078974510000143
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.1g (20mmol) 4-bromo-2-to fluorobenzene methyl-2H-1, and 2, the 3-triazole.Obtain 2-to fluorobenzene methyl-2H-1,2,3-triazole-4-carboxylic acid 3.76g, yield 85%. 1H?NMR(CD 3COCD 3,400MHz):δ8.13(s,1H),7.46(dd,J=5.7,8.2Hz,2H),7.16(dd,J=8.2,9.0Hz,2H),5.72(s,2H); 13C?NMR(CD 3COCD 3,400MHz):δ163.6(d,J=244.0Hz),141.4,138.1,132.3(d,J=3.0Hz),131.4(d,J=8.0Hz),122.3,116.3(d,J=21.0Hz),59.0。
Embodiment 21:
Figure BDA0000078974510000151
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.45g (20mmol) 4-bromo-2-to chlorophenylmethyl-2H-1, and 2, the 3-triazole.Obtain 2-to chlorophenylmethyl-2H-1,2,3-triazole-4-carboxylic acid 2.62g, yield 55%. 1H?NMR(CD 3COCD 3,400MHz):δ8.14(s,1H),7.42(s,4H),5.74(s,2H); 13C?NMR(CD 3COCD 3,400MHz):δ165.9,145.8,142.6,142.4,139.3,135.2,134.0,63.2。
Embodiment 22:
Figure BDA0000078974510000152
Working method is with embodiment 12, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 6.45g (20mmol) 4-bromo-2-to trifluoromethyl phenmethyl-2H-1, and 2, the 3-triazole.Obtain 2-to trifluoromethyl phenmethyl-2H-1,2,3-triazole-4-carboxylic acid 4.65g, yield 81%. 1H?NMR(CD 3COCD 3,400MHz):δ8.15(s,1H),7.54(ABq,J=8.4Hz,2H),7.36(ABq,J=8.4Hz,2H),5.79(s,2H); 13C?NMR(CD 3COCD 3,400MHz):δ161.6,149.9,141.6,138.2,135.4,131.1,122.2,121.4(q,J=254.0Hz),58.8。
Embodiment 23:
Figure BDA0000078974510000161
With 3.24g (20mmol) 4-bromo-2-methyl-2H-1,2, the 3-triazole is dissolved in the 50ml THF, at 10~20 ℃, slowly adds 18.5ml (24mmol) 1.3M isopropylmagnesium chloride-lithium chloride tetrahydrofuran solution, finishes, and continues reaction 2 hours.Be cooled to below-20 ℃, add trimethyl borate 3.5ml (30mmol), continue reaction 0.5~2 hour.At room temperature, to pH=1~2, use the 100ml ethyl acetate extraction with the 1.0M hcl acidifying again, organic layer is evaporated to dried through anhydrous sodium sulfate drying.Resistates is dissolved in the 20ml MTBE, drips the 30ml normal hexane under the room temperature, is cooled to 0~5 ℃, stirs 1 hour, and filtration, room temperature vacuum-drying obtain 2-methyl-2H-1, and 2,3-triazole-4-boric acid 1.6g, yield 63%. 1H?NMR(DMSO-d6,400MHz):δ7.93(s,1H),4.19(s,3H); 13C?NMR(DMSO-d6,400MHz):δ142.0,41.0。
Embodiment 24:
Figure BDA0000078974510000162
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 3.52g (20mmol) 4-bromo-2-ethyl-2H-1,2,3-triazole.Obtain 2-ethyl-2H-1,2,3-triazole-4-boric acid 1.0g, yield 72%. 1H?NMR(DMSO-d6,400MHz):δ7.92(s,1H),4.46(t,J=7.2Hz,2H),1.45(t,J=7.2Hz,3H); 13C?NMR(DMSO-d6,400MHz)δ140.6,49.0,14.7。
Embodiment 25:
Figure BDA0000078974510000163
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 3.8g (20mmol) 4-bromo-2-n-propyl-2H-1,2,3-triazole.Obtain 2-n-propyl-2H-1,2,3-triazole-4-boric acid 2.66g, yield 86%. 1H?NMR(DMSO-d6,400MHz):δ7.94(s,1H),4.40(t,J=6.8Hz,2H),1.92-1.86(m,2H),0.83(t,J=7.4Hz,3H); 13C?NMR(DMSO-d6,400MHz)δ141.6,140.6,55.4,22.7,10.9。
Embodiment 26:
Figure BDA0000078974510000171
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 4.3g (20mmol) 4-bromo-2-cyclopentyl-2H-1,2,3-triazole.Obtain 2-cyclopentyl-2H-1,2,3-triazole-4-boric acid 3.08g, yield 85%. 1H?NMR(DMSO-d6,400MHz):δ7.92(s,1H),5.09-5.02(m,1H),2.14-2.03(m,4H),1.984-1.78(m,2H),1.69-1.66(m,2H); 13C?NMR(DMSO-d6,400MHz):δ141.5(bs),140.4,64.9,32.4,23.9。
Embodiment 27:
Figure BDA0000078974510000172
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 4.76g (20mmol) 4-bromo-2-phenmethyl-2H-1,2,3-triazole.Obtain 2-phenmethyl-2H-1,2,3-triazole-4-boric acid 3.53g, yield 87%. 1H?NMR(DMSO-d6,400MHz):δ7.99(s,1H),7.37-7.24(m,5H),5.68(s,2H); 13C?NMR(DMSO-d6,400MHz):δ142.1,141.1,137.1,133.0,129.0,127.6,57.2,20.6。
Embodiment 28:
Figure BDA0000078974510000173
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.06g (20mmol) 4-bromo-2-to methylbenzyl-2H-1, and 2, the 3-triazole.Obtain 2-to methylbenzyl-2H-1,2,3-triazole-4-boric acid 3.81g, yield 88%. 1H?NMR(DMSO-d6,400MHz):δ7.96(s,1H),7.15(s,4H),5.62(s,2H),2.27(s,3H); 13C?NMR(DMSO-d6,400MHz):δ142.0,141.1?136.0,128.5,127.8,127.6,57.4。
Embodiment 29:
Figure BDA0000078974510000181
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.4g (20mmol) 4-bromo-2-meta-methoxy phenmethyl-2H-1,2,3-triazole.Obtain 2-meta-methoxy phenmethyl-2H-1,2,3-triazole-4-boric acid 3.82g, yield 82%. 1H?NMR(DMSO-d6,400MHz):δ8.37(bs,2H),7.96(s,1H),7.26(t,J=8.0Hz,1H),6.87(d,J=8.0Hz,1H),6.80(s,1H),6.79(d,J=8.0Hz,1H),5.63(s,2H),3.72(s,3H); 13C?NMR(DMSO-d6,400MHz):δ159.2,141.1,138.1,137.5,129.6,119.6,113.3,113.1,57.2,55.0。
Embodiment 30:
Figure BDA0000078974510000182
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.4g (20mmol) 4-bromo-2-to mehtoxybenzyl-2H-1, and 2, the 3-triazole.Obtain 2-to mehtoxybenzyl-2H-1,2,3-triazole-4-boric acid 3.77g, yield 81%. 1H?NMR(CD 3COCD 3,400MHz):δ7.90(s,1H),7.27(ABq,J=8.6Hz,2H),6.89(ABq,J=8.6Hz,2H),5.58(s,2H),3.77(s,3H); 13C?NMR(CD 3COCD 3,400MHz):δ160.5,141.7,130.3,129.0,114.8,58.4,55.6。
Embodiment 31:
Figure BDA0000078974510000183
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.1g (20mmol) 4-bromo-2-to fluorobenzene methyl-2H-1, and 2, the 3-triazole.Obtain 2-to fluorobenzene methyl-2H-1,2,3-triazole-4-boric acid 3.1g, yield 70%. 1H?NMR(DMSO-d6,400MHz):δ7.97(s,1H),7.46(dd,J=5.7,8.6Hz,2H),7.19(dd,J=8.6,9.0Hz,2H),5.67(s,2H); 13C?NMR(DMSO-d6,400MHz):δ161.7(d,J=243.0Hz),141.1,132.2(d,J=3.0Hz),129.9(d,J=9.0Hz),115.4(d,J=22.0Hz),56.5。
Embodiment 32:
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 5.45g (20mmol) 4-bromo-2-to chlorophenylmethyl-2H-1, and 2, the 3-triazole.Obtain 2-to chlorophenylmethyl-2H-1,2,3-triazole-4-boric acid 2.45g, yield 52%. 1H?NMR(DMSO-d6,400MHz):δ7.99(s,1H),7.42(ABq,J=8.4Hz,2H),7.27(ABq,J=8.4Hz,2H),5.69(s,2H); 13C?NMR(DMSO-d6,400MHz)δ141.2,135.0,132.5,129.5,128.5,128.4,56.6。
Embodiment 33:
Figure BDA0000078974510000192
Working method is with embodiment 23, with 4-bromo-2-methyl-2H-1, and 2, the 3-triazole replaces with 6.45g (20mmol) 4-bromo-2-to trifluoromethyl phenmethyl-2H-1, and 2, the 3-triazole.Obtain 2-to trifluoromethyl phenmethyl-2H-1,2,3-triazole-4-boric acid 3.79g, yield 66%. 1H?NMR(DMSO-d6,400MHz):δ8.00(s,1H),7.39(ABq,J=9.2Hz,2H),7.36(ABq,J=9.2Hz,2H),5.74(s,2H); 13C?NMR(DMSO-d6,400MHz):δ147.9(d,J=2.0Hz),141.3,135.5,129.7,121.3,119.9(q,J=245.0Hz),56.5。
Embodiment 34:
With 5g (20.7mmol) 2-methyl-4,5-two bromo-2H-1,2, the 3-triazole is dissolved in the 40ml THF, is cooled to-15~-5 ℃, slowly adds 11.2ml (22.4mmol) 2M isopropylmagnesium chloride tetrahydrofuran solution, finishes, and continues reaction 0.5 hour.Slowly add 0.88ml (21.74mmol) methyl alcohol, be warming up to 5~15 ℃, add 17.3ml (22.4mmol) 1.3M isopropylmagnesium chloride-lithium chloride tetrahydrofuran solution, finish, continue reaction 2 hours under the room temperature.Be cooled to below 0 ℃, fed dioxide gas about 10~30 minutes, temperature<15 ℃, with the 1.0M hcl acidifying to pH=1~2; Again with 100ml MTBE extraction, organic layer is through anhydrous sodium sulfate drying, is evaporated to driedly, and residual solid is dissolved in 5ml ETHYLE ACETATE; Drip the 20ml normal hexane under the room temperature, continue to stir 1 hour, filter room temperature vacuum-drying; Obtain 2-methyl-2H-1,2,3-triazole-4-carboxylic acid 1.74g, yield 66%.
Embodiment 35:
Working method is with embodiment 34, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 5.28g (20.7mmol) 2-ethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 2-ethyl-2H-1,2,3-triazole-4-carboxylic acid 2.34g, yield 80%.
Embodiment 36:
Working method is with embodiment 34, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 5.57g (20.7mmol) 2-n-propyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 2-n-propyl-2H-1,2,3-triazole-4-carboxylic acid 2.66g, yield 83%.
Embodiment 37:
Figure BDA0000078974510000211
Working method is with embodiment 34, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 6.11g (20.7mmol) 2-cyclopentyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 2-cyclopentyl-2H-1,2,3-triazole-4-carboxylic acid 3.3g, yield 88%.
Embodiment 38:
Figure BDA0000078974510000212
With 5g (20.7mmol) 2-methyl-4,5-two bromo-2H-1,2, the 3-triazole is dissolved in the 40ml THF, is cooled to-15~-5 ℃, slowly adds 11.2ml (22.4mmol) 2M isopropylmagnesium chloride tetrahydrofuran solution, finishes, and continues reaction 0.5 hour.Slowly add 0.88ml (21.74mmol) methyl alcohol, be warming up to 5~15 ℃, add 17.3ml (22.4mmol) 1.3M isopropylmagnesium chloride-lithium chloride tetrahydrofuran solution, finish, continue reaction 2 hours under the room temperature.Be cooled to below-20 ℃, add trimethyl borate 3.6ml (31mmol), continue reaction 0.5~2 hour, with the 1.0M hcl acidifying to pH=1~2, temperature<15 ℃; Use the 100ml ethyl acetate extraction again, organic layer is through anhydrous sodium sulfate drying, is evaporated to driedly, and resistates is dissolved in the 10ml MTBE; Drip the 30ml normal hexane under the room temperature, be cooled to 0~5 ℃, stirred 1 hour, filtration, room temperature vacuum-drying; Obtain 2-methyl-2H-1,2,3-triazole-4-boric acid 1.97g, yield 75%.
Embodiment 39:
Working method is with embodiment 38, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 5.28g (20.7mmol) 2-ethyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 2-ethyl-2H-1,2,3-triazole-4-boric acid 2.54g, yield 87%.
Embodiment 40:
Figure BDA0000078974510000221
Working method is with embodiment 38, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 5.57g (20.7mmol) 2-n-propyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 2-n-propyl-2H-1,2,3-triazole-4-boric acid 2.95g, yield 92%.
Embodiment 41:
Working method is with embodiment 38, with 2-methyl-4, and 5-two bromo-2H-1,2, the 3-triazole replaces with 6.11g (20.7mmol) 2-cyclopentyl-4,5-two bromo-2H-1,2,3-triazole.Obtain 2-cyclopentyl-2H-1,2,3-triazole-4-boric acid 3.37g, yield 90%.
Embodiment 42:
Figure BDA0000078974510000223
With 5g (24.27mmol) 5-bromo-2-methyl-2H-1,2,3-triazole-4-carboxylic acid is dissolved in 100ml ETHYLE ACETATE, adds 0.25g 5% palladium charcoal, feeds hydrogen, keeps pressure 1~3atm, room temperature reaction 20~24 hours.Reaction finishes, and filters, and filtrate decompression is concentrated into dried.Residual solid is dissolved in 10ml ETHYLE ACETATE, and Dropwise 5 0ml normal hexane under the room temperature continues to stir 1 hour, filters, and room temperature vacuum-drying obtains 2-methyl-2H-1, and 2,3-triazole-4-carboxylic acid 2.9g, yield 95%.

Claims (11)

1.2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate, this 2,4-two replacement-2H-1,2,3-triazole verivate has following structure:
Formula I
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl; R2 representes carboxyl or boronate;
It is characterized in that, comprise step:
With formula IV compound be dissolved in mass volume ratio 1: 2~20 ether, THF or 1, the 4-dioxane is cooled to-78~0 ℃, adds isopropylmagnesium chloride; Stirred 0.1~2 hour, and slowly added C1~C4 lower alcohol, stirred 0.5~1 hour, under-20~30 ℃; Add isopropylmagnesium chloride-lithium chloride mixture, stirred 0.5~5 hour, be cooled to-50~20 ℃, feed the compound boric acid ester of about 10~30 minutes of dioxide gas or adding formula IX; Stirred 0.1~2 hour, and be warming up to room temperature, regulate pH=1~5 with hydrochloric acid after, use organic solvent extraction; Through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying, be evaporated to driedly, enriched material obtains 2 of formula I through recrystallization, 4-two replacement-2H-1; 2,3-triazole verivate
Figure FDA0000078974500000012
Formula IV
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl;
Formula IX
Wherein, R3 representes the straight or branched alkyl of C1~C5, comprises methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, n-pentyl, isopentyl.
2. according to claim 12,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate is characterized in that, the mol ratio of described formula IV compound and lower alcohol is 1: 0.8~1.2; The lower alcohol of described C1~C4 comprises methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol or the trimethyl carbinol; The mol ratio of described compound IV and 1.3M isopropylmagnesium chloride-lithium chloride tetrahydrofuran solution is 1: 0.8~2.0; The mol ratio of formula IV compound and formula IX boric acid ester or carbonic acid gas is 1: 1~10; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester or the ethers, comprises the mixing of one or more arbitrary proportions in ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, ether, propyl ether, isopropyl ether, the MTBE.
3.2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate, this 2,4-two replacement-2H-1,2,3-triazole verivate has following structure:
Figure FDA0000078974500000021
Formula I
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl; R2 representes carboxyl or boronate;
It is characterized in that, comprise step:
With formula IV compound be dissolved in mass volume ratio 1: 2~20 ether, THF or 1, the 4-dioxane is cooled to-78~0 ℃, adds isopropylmagnesium chloride; Stirred 0.1~2 hour, and added the water of mass ratio 1: 1~20, regulate pH=1~5 with hydrochloric acid after, use organic solvent extraction; Through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying, be evaporated to driedly, obtain formula VI compound, formula VI compound further converts 2 of formula I into; 4-two replacement-2H-1,2,3-triazole verivate
Figure FDA0000078974500000022
Formula IV
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl;
Formula VI
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
4. according to claim 32,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate is characterized in that, the mol ratio of said formula IV compound and isopropylmagnesium chloride is 1: 0.8~1.2; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester or the ethers, comprises the mixing of one or more arbitrary proportions in ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, ether, propyl ether, isopropyl ether, the MTBE.
5. according to claim 1 or 3 described 2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate; It is characterized in that, when R2 is carboxyl, described 2 among the formula I, 4-two replacement-2H-1; 2,3-triazole verivate is the 2-replacement-2H-1 of formula II, 2, and 3-triazole-4-carboxylic acid;
Figure FDA0000078974500000032
Formula II
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl;
Said 2-replacement-2H-1,2,3-triazole-4-carboxylic acid prepares through following method: with said formula VI compound be dissolved in mass volume ratio 1: 2~20 ether, THF or 1,4-dioxane; Be cooled to-20~30 ℃, add isopropylmagnesium chloride-lithium chloride mixture, stirred 0.5~5 hour, be cooled to-50~20 ℃; Fed dioxide gas about 10~30 minutes, and be warming up to room temperature, regulate pH=1~5 with hydrochloric acid after; Use organic solvent extraction,, be evaporated to dried through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying; Enriched material obtains said 2-replacement-2H-1 through recrystallization, and 2,3-triazole-4-carboxylic acid.
6. according to claim 1 or 3 described 2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate; It is characterized in that, when R2 is carboxyl, described 2 among the formula I, 4-two replacement-2H-1; 2,3-triazole verivate is the 2-replacement-2H-1 of formula II, 2, and 3-triazole-4-carboxylic acid;
Figure FDA0000078974500000041
Formula II
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl;
Said 2-replacement-2H-1,2,3-triazole-4-carboxylic acid prepares through following method: in formula VIII compound is dissolved in mass volume ratio 1: 1~100 the organic solvent, add the metal catalyst of 0.1~50% weight ratio; Feed hydrogen, keep pressure 1~100atm,, reacted 1~50 hour at 0~200 ℃; At room temperature filter, be evaporated to driedly, enriched material obtains said 2-replacement-2H-1 through recrystallization; 2,3-triazole-4-carboxylic acid
Formula VIII
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl.
7. according to claim 62; 4-two replacement-2H-1; 2; The preparation method of 3-triazole verivate; It is characterized in that; Described organic solvent is the mixing of one or more arbitrary proportions in alcohols or the fatty acid ester, comprises the mixing of one or more arbitrary proportions in methyl alcohol, ethanol, propyl alcohol, Virahol, propyl carbinol, the trimethyl carbinol, Pentyl alcohol, primary isoamyl alcohol, ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and the amyl propionate; Described metal catalyst is that in palladium metal, ruthenium, the platinum one or more are carried on the charge capacity of processing on gac, aluminum oxide or the Zeolite support is 1~10% catalyzer.
8. according to claim 1 or 3 described 2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate; It is characterized in that: when R2 is boronate, described 2 among the formula I, 4-two replacement-2H-1,2; 3-triazole verivate is the 2-replacement-2H-1 of formula III, 2, and 3-triazole-4-boric acid
Figure FDA0000078974500000051
Formula III
Wherein, R1 representes alkyl, aryl, aralkyl, naphthenic base, cycloalkylalkyl, heteroaryl, heteroarylalkyl, Heterocyclylalkyl;
Said 2-replacement-2H-1,2,3-triazole-4-boric acid prepares through following method: with said compound VI be dissolved in mass volume ratio 1: 2~20 ether, THF or 1,4-dioxane; Be cooled to-20~30 ℃, add isopropylmagnesium chloride-lithium chloride mixture, stirred 0.5~5 hour, be cooled to-50~20 ℃; Adding formula IX compound boric acid ester stirred 0.1~2 hour, was warming up to room temperature, regulate pH=1~5 with hydrochloric acid after; Use organic solvent extraction,, be evaporated to dried through SODIUM SULPHATE ANHYDROUS 99PCT or anhydrous magnesium sulfate drying; Enriched material obtains said 2-replacement-2H-1 through recrystallization, and 2,3-triazole-4-boric acid.
9. according to claim 6 or 8 described 2,4-two replacement-2H-1,2, the preparation method of 3-triazole verivate is characterized in that, the mol ratio of described compound VI and isopropylmagnesium chloride-lithium chloride mixture is 1: 0.8~2.0; The mol ratio of formula VI compound and formula IX boric acid ester or carbonic acid gas is 1: 1~10; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester or the ethers, comprises the mixing of one or more arbitrary proportions in ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, ether, propyl ether, isopropyl ether, the MTBE.
10. according to each is described 2 in the claim 1,5,6,8,4-two replacement-2H-1,2; The preparation method of 3-triazole verivate is characterized in that the method for described recrystallization may further comprise the steps; By mass volume ratio 1: 1~100 enriched material is added in the organic solvent, stirred 0.5~24 hour, filter at-20~50 ℃; Vacuum-drying obtains pure article.
11. according to claim 10 2; 4-two replacement-2H-1; 2; The preparation method of 3-triazole verivate; It is characterized in that; Described organic solvent is the mixing of one or more arbitrary proportions in fatty acid ester, ketone, ethers and the hydro carbons, comprises ethyl formate, propyl formate, butyl formate, methyl acetate, ETHYLE ACETATE, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate and amyl propionate, acetone, 2-butanone, ketopentamethylene and pimelinketone, ether, propyl ether, isopropyl ether, MTBE and THF, 1, the mixing of one or more arbitrary proportions in 4-dioxane, sherwood oil, normal hexane, hexanaphthene, methylcyclohexane and the normal heptane.
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