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CAS No.: | 29490-19-5 |
---|---|
Name: | 2-Mercapto-5-methyl-1,3,4-thiadiazole |
Article Data: | 29 |
Molecular Structure: | |
Formula: | C3H4N2S2 |
Molecular Weight: | 132.21 |
Synonyms: | 1,3,4-Thiadiazole-2(3H)-thione, 5-methyl-;5-methyl-3H-1,3,4-thiadiazole-2-thione;5-Methyl-1,3,4-thiadiazole-2(3H)-thione;D-Hydro phenyl glycine sodium methyl dane salt;2-Mercapto-5-Methyl-1,3,4-Thiadiazol;2-mercapto-5-methyl-1,3,4 thiadiazole(MMTD);2-Methyl-5-mercapto-1,3,4-thiadiazole; |
EINECS: | 249-667-1 |
Density: | 1.58 g/cm3 |
Melting Point: | 185-188 °C |
Boiling Point: | 182.9 °C at 760 mmHg |
Flash Point: | 64.4 °C |
Solubility: | water: 2 g/100 mL |
Appearance: | white crystal powder |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 37/39-26 |
PSA: | 92.82000 |
LogP: | 1.13520 |
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
With hydrogenchloride In water at 30 - 35℃; for 0.5h; pH=4 - 4.5; | 99.9% |
Bis(2-methyl-1,3,4-thiadiazolyl)-5,5'-disulfide
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
With hydrazine In dichloromethane for 0.25h; Ambient temperature; further reagents; | 87% |
potassium N-acetylhydrazinodithioformate
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
With SO42-/TiO2-SnO2-Al2O3 solid super acid catalyst In tetrahydrofuran at -5 - 0℃; for 3.5h; | 84.2% |
With sulfuric acid at 5℃; | |
With sulfuric acid |
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
With SO42-/TiO2-SnO2-Al2O3 solid super acid catalyst In tetrahydrofuran at -5 - 0℃; for 3.5h; Reagent/catalyst; | 83.5% |
delta-3 methyl ester of cefazolin
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
With phosphate buffer at 40℃; for 0.0833333h; Rate constant; |
delta-3 methyl ester of cefazolin
A
cefazolin
B
2-mercapto-5-methyl-1,3,4-thiadiazole
D
(6R,7R)-3-(5-Methyl-[1,3,4]thiadiazol-2-ylsulfanylmethyl)-8-oxo-7-(2-tetrazol-1-yl-acetylamino)-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With phosphate buffer at 40℃; for 0.0833333h; Mechanism; |
Conditions | Yield |
---|---|
With hydrazine 1) DMF, 0-5 deg C; 2) DMF, 0-5 deg C; 3) DMF, microwave irradiation, 1 min; Yield given. Multistep reaction; |
5-methyl-1,3,4-thiadiazol-2-amine
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
With potassium hydroxide; hydrogen bromide; copper; thiourea; sodium nitrite In ethanol |
2-methyl-1,3,4-thiadiazoline-5-thione
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
In argon matrix at -263.16℃; for 2.25h; UV-irradiation; |
carbon disulfide
acetic anhydride
thiosemicarbazide
2-mercapto-5-methyl-1,3,4-thiadiazole
Conditions | Yield |
---|---|
Stage #1: carbon disulfide; thiosemicarbazide With sodium carbonate In ethanol at 20 - 30℃; for 4.5h; Stage #2: acetic anhydride With sulfuric acid In ethanol at 0 - 20℃; for 2h; Reflux; |
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