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CAS No.: | 16227-10-4 |
---|---|
Name: | 4-Butyl-4H-1,2,4-triazole |
Article Data: | 9 |
Molecular Structure: | |
Formula: | C6H11 N3 |
Molecular Weight: | 125.173 |
Synonyms: | 4-Butyl-1,2,4-triazole;4-Butyl-4H-1,2,4-triazole; 4-n-Butyl-1,2,4-triazole; BT; BT (pesticide);Butrizol; Dithane R 24; Indar; RH 124; Triazbutil; Triazbutyl |
EINECS: | 240-351-9 |
Density: | 1.04g/cm3 |
Boiling Point: | 220.9°Cat760mmHg |
Flash Point: | 87.4°C |
Safety: | A poison by ingestion and skin contact. When heated to decomposition it emits toxic fumes of NOx. |
PSA: | 30.71000 |
LogP: | 1.07820 |
1,2,4-Triazole
1-bromo-butane
A
1-butyl-1H-[1,2,4]triazole
B
4-n-butyl-1,2,4-triazole
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 0 - 20℃; Alkylation; | A 85% B n/a |
With aluminum oxide; potassium fluoride; tetrabutylammomium bromide for 24h; Ambient temperature; Yield given. Yields of byproduct given; | |
With sodium hydroxide In N,N-dimethyl-formamide at 20℃; Alkylation; |
1,2,4-Triazole
1-bromo-butane
A
1-butyl-1H-[1,2,4]triazole
B
4-n-butyl-1,2,4-triazole
Conditions | Yield |
---|---|
With lithium hydroxide; tetrabutylammomium bromide for 24h; Product distribution; Ambient temperature; also benzotriazole; other alkyl halides; var. base as reagents; also reactions in the absence of base; var. temperatures and reaction time; also with conventional heating or microwave heating instead of phase transfer catalysis; |
N-butylamine
orthoformic acid triethyl ester
formic acid hydrazide
4-n-butyl-1,2,4-triazole
Conditions | Yield |
---|---|
Stage #1: orthoformic acid triethyl ester; formic acid hydrazide In methanol Heating; Stage #2: N-butylamine In methanol Heating; Further stages.; |
Conditions | Yield |
---|---|
With magnesium carbonate at 200℃; for 20h; Inert atmosphere; | 5.25 g |
methyl bromide
4-n-butyl-1,2,4-triazole
4-butyl-1-methyl-4H-1,2,4-triazol-1-ium bromide
Conditions | Yield |
---|---|
In acetonitrile for 36h; Reflux; Inert atmosphere; Schlenk technique; | 96% |
t-butyl bromide
4-n-butyl-1,2,4-triazole
Conditions | Yield |
---|---|
In acetonitrile for 36h; Reflux; Inert atmosphere; Schlenk technique; | 92% |
4-n-butyl-1,2,4-triazole
BH2(C2H2N3(C4H9))2(1+)*I(1-)=[BH2(C2H2N3(C4H9))2]I
Conditions | Yield |
---|---|
With trimethylamine-borane; iodine In toluene for 24h; Reflux; | 85.8% |
trimethylamine-borane
iodine
4-n-butyl-1,2,4-triazole
BH2(C2H2N3(C4H9))2(1+)*I(1-)=[BH2(C2H2N3(C4H9))2]I
Conditions | Yield |
---|---|
In toluene I2 added to toluene soln. of Me3NBH3 , stirred at room temp. for 1 h, ligand added (1:2:4 molar ratio), mixt. refluxed for 24 h; filtered off, washed (hexane, Et2O, toluene), dried (80°C, vac.),recrystd. (hot EtOH), elem. anal.; | 85.8% |
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1. | orl-rat LD50:50 mg/kg | 85ARAE Agricultural Chemicals, 4 (1976/77),94. | ||
2. | skn-rbt LD50:315 mg/kg | FMCHA2 Farm Chemicals Handbook .(Meister Publishing,Willoughy, OH.: )1983,C131. |