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CAS No.: | 251-56-9 |
---|---|
Name: | Thiazolo[5,4-d]thiazole |
Article Data: | 4 |
Molecular Structure: | |
Formula: | C4H2N2S2 |
Molecular Weight: | 142.205 |
Synonyms: | Thiazolo[5,4-d]thiazole; |
Density: | 1.598±0.06 g/cm3(Predicted) |
Melting Point: | 149-150 °C |
Boiling Point: | 241.0±13.0 °C(Predicted) |
PSA: | 82.26000 |
LogP: | 1.75280 |
thiazolo<5,4-d>thiazole-2,5-dicarboxylic acid
thiazolo[5,4-d]thiazole
Conditions | Yield |
---|---|
With ethanol for 24h; Heating; | 79% |
at 225 - 230℃; under 5 Torr; | |
In ethanol at 80℃; for 48h; |
diethyl thiazolo[5,4-d]thiazole-2,5-dicarboxylate
thiazolo[5,4-d]thiazole
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol for 8h; Heating; | 75% |
2,5-dichlorothiazolo[5,4-d]thiazole
thiazolo[5,4-d]thiazole
Conditions | Yield |
---|---|
With acetic acid; zinc for 9h; Heating; | 52% |
Conditions | Yield |
---|---|
With copper diacetate; palladium diacetate; potassium carbonate; triphenylphosphine In N,N-dimethyl-formamide at 135℃; for 18h; Inert atmosphere; | 65% |
thiazolo[5,4-d]thiazole
2,5-dibromothiazolo[5,4-d]thiazole
Conditions | Yield |
---|---|
With pyridine In tetrachloromethane for 4h; Heating; | 58% |
With pyridine; bromine In tetrachloromethane at 80℃; for 4h; | 45% |
thiazolo[5,4-d]thiazole
A
2-chlorothiazolo[5,4-d]thiazole
B
2,5-dichlorothiazolo[5,4-d]thiazole
Conditions | Yield |
---|---|
With trichloroisocyanuric acid In tetrachloromethane for 168h; Heating; | A 40% B 44% |
thiazolo[5,4-d]thiazole
A
2-bromothiazolo[5,4-d]thiazole
B
2,5-dibromothiazolo[5,4-d]thiazole
Conditions | Yield |
---|---|
With pyridine; bromine In tetrachloromethane for 4h; Heating; | A 35% B 14% |
carbon dioxide
thiazolo[5,4-d]thiazole
thiazolo[5,4-d]thiazole-2-carboxylic acid
Conditions | Yield |
---|---|
(i) BuLi, (ii)/BRN= 1900390/; Multistep reaction; |