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Cas:5728-20-1
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inquiryProduct informations Product Name 3,4-Dichloro-1,2,5-thiadiazole CAS No. 5728-20-1
Cas:5728-20-1
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inquiry3,4-Dichloro-1,2,5-thiadiazole cas 5728-20-1 Purity: 99% Min Application: Intermediates Appearance: Powder Package: Bag Delivery: 3-5days Our Advantage & Service 1.Top quality: Using high quality material and establishing a strict qu
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inquiryConditions | Yield |
---|---|
With pyridine; disulfur dichloride In acetonitrile at -25℃; for 5h; Inert atmosphere; Reflux; | 78% |
With sulfur dichloride In N,N-dimethyl-formamide |
Conditions | Yield |
---|---|
With disulfur dichloride In N,N-dimethyl-formamide | |
With sulfur dichloride |
hexa-P-phenyl-P,P'-ethane-1,2-diyldiamino-bis-phosphonium; dichloride
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With sulfur tetrafluoride; triethylamine In dichloromethane |
Conditions | Yield |
---|---|
With disulfur dichloride; chlorine In N,N-dimethyl-formamide |
1,2-diaminoethane dihydrochloride
A
3-Chloro-1,2,5-thiadiazole
B
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With disulfur dichloride; chlorine; iron In N,N-dimethyl-formamide | A 5 g B 115.7 g |
Conditions | Yield |
---|---|
at 110 - 120℃; | 100% |
at 90 - 100℃; Inert atmosphere; | 94% |
In neat (no solvent) at 90℃; for 2h; | |
In neat (no solvent) at 90℃; for 2h; |
4-benzylpyperidine
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
at 110 - 120℃; | 100% |
morpholine
3,4-dichloro-1,2,5-thiadiazole
3-Morpholino-4-chloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
98% | |
at 110℃; for 2.5h; Inert atmosphere; | 95% |
at 110 - 120℃; | 90% |
hexamethylene imine
3,4-dichloro-1,2,5-thiadiazole
3-(1-azepanyl)-4-chloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
at 120℃; for 4h; Inert atmosphere; | 98% |
(S)-1-tert-butylamino-2,3-dihydroxypropane
3,4-dichloro-1,2,5-thiadiazole
(S)-(-)-3-(3-tert-butylamnio-2-hydroxypropoxy)-4-chloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With potassium tert-butylate In tert-butyl alcohol for 1h; Heating / reflux; | 96.6% |
3,4-dichloro-1,2,5-thiadiazole
3-chloro-5,6-dimethyl-1,2-benzoisothiazole
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Inert atmosphere; | 96% |
3,4-dichloro-1,2,5-thiadiazole
6-(trimethylsilyl)benzo[d][1,3]dioxol-5-yl triflate
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Inert atmosphere; | 96% |
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Inert atmosphere; | 93% |
3,4-dichloro-1,2,5-thiadiazole
A
2-(Chlorimino)-N-(difluor-λ4-sulfanyliden)-1,1,2-trifluorethanamin
B
2-Chlor-2-(chlorimino)-N-(difluor-λ4-sulfanyliden)-1,1-difluorethanamin
C
N,N-Dichlor-N'-(difluor-λ4-sulfanyliden)-1,1,2,2-tetrafluor-1,2-ethandiamin
D
Bis<2-<(difluor-λ4-sulfanyliden)amino>-1,1,2,2-tetrafluorethyl>diazen
Conditions | Yield |
---|---|
With HgF3 at 140℃; for 1h; further reagent: BrF3; | A n/a B n/a C n/a D 91% |
With bromine trifluoride at -15℃; Title compound not separated from byproducts; |
1-methyl-piperazine
3,4-dichloro-1,2,5-thiadiazole
3-chloro-4-(4-methylpiperazin-1-yl)-1,2,5-thiadiazole
Conditions | Yield |
---|---|
In ethanol at 100℃; for 2.5h; Sealed tube; Microwave irradiation; | 91% |
at 105 - 110℃; for 2.5h; | 90.2% |
at 105 - 110℃; for 2.5h; | 90.2% |
4-phenyl-1-piperazine
3,4-dichloro-1,2,5-thiadiazole
3-chloro-4-(4-phenylpiperazin-1-yl)-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 100 - 110℃; | 91% |
at 105 - 110℃; for 2.5h; |
Conditions | Yield |
---|---|
at 110 - 120℃; | 91% |
Conditions | Yield |
---|---|
In n-heptane at -78℃; for 0.5h; | 90% |
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran at -10℃; for 0.5h; | 88% |
pyrrolidine
3,4-dichloro-1,2,5-thiadiazole
3-(pyrrolidin-1-yl)-4-chloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
at 22℃; Inert atmosphere; | 87% |
titanium tetrachloride
3,4-dichloro-1,2,5-thiadiazole
(SN2C2Cl2)2TiCl4
Conditions | Yield |
---|---|
In dichloromethane under N2 and exclusion of air, to a soln. of SN2C2Cl2 in dry CH2Cl2 addn. of TiCl4 in CH2Cl2 under stirring at room temp.; removal of solvent, recrystn. (CH2Cl2), sublimation (vac., room temp.), elem. anal.; | 82% |
decahydroisoquinoline
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 100 - 110℃; | 81% |
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With sulfur trioxide In dichloromethane Ambient temperature; | 79% |
3,4-dichloro-1,2,5-thiadiazole
1-t-Butoxycarbonylpiperazine
4-(4-chloro-[1,2,5]thiadiazol-3-yl)piperazine-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide Heating; | 77% |
With potassium carbonate In acetonitrile | 1.54 g (31%) |
With diisopropylamine In N,N-dimethyl-formamide at 100℃; for 16h; | 2.7 g |
With N-ethyl-N,N-diisopropylamine In dimethyl sulfoxide at 100℃; for 16h; |
2-(trimethylsilyl)phenyl trifluoromethanesulfonate
3,4-dichloro-1,2,5-thiadiazole
3-chloro-1,2-benzisothiazole
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Reagent/catalyst; Solvent; Inert atmosphere; | 76% |
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran at -10℃; for 0.5h; | 75% |
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
Stage #1: C19H26F3IO5SSi3 With cesium fluoride Stage #2: 3,4-dichloro-1,2,5-thiadiazole In tetrahydrofuran at 60℃; for 3h; | 75% |
2,2,6,6-tetramethyl-piperidine
3,4-dichloro-1,2,5-thiadiazole
2-chloro-2-(2,2,6,6-tetramethyl-1-piperidinylthio)iminoacetonitrile
Conditions | Yield |
---|---|
Stage #1: 2,2,6,6-tetramethyl-piperidine With n-butyllithium In tert-butyl methyl ether at -20℃; Stage #2: 3,4-dichloro-1,2,5-thiadiazole In tert-butyl methyl ether at -50℃; | 74% |
3,4-dichloro-1,2,5-thiadiazole
A
3,4-Difluoro-1,2,5-thiadiazole
B
3-chloro-4-fluoro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
In sulfolane at 180℃; for 10h; | A 73% B 24% |
In sulfolane at 180℃; for 10h; further reagent: 18-Crown<6>, XeF2; | A 48% B 24% |
3,4-dichloro-1,2,5-thiadiazole
lithium hexamethyldisilazane
2-chloro-2-(N,N-bis(trimethylsilyl)aminothio)iminoacetonitrile
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether; cyclohexane at -78℃; for 1h; | 73% |
3,4-dichloro-1,2,5-thiadiazole
2-methoxy-6-(trimethylsilyl)phenyltrifluoromethanesulfonate
3-chloro-4-methoxy-1,2-benzoisothiazole
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Inert atmosphere; regioselective reaction; | 70% |
3,4-dichloro-1,2,5-thiadiazole
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Inert atmosphere; regioselective reaction; | A 69% B 9% |
2-(trimethylsilyl)phenyl trifluoromethanesulfonate
3,4-dichloro-1,2,5-thiadiazole
malonic acid dimethyl ester
A
3-Amino-benzo[b]thiophene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
Stage #1: 2-(trimethylsilyl)phenyl trifluoromethanesulfonate; 3,4-dichloro-1,2,5-thiadiazole With cesium fluoride In tetrahydrofuran at 20 - 65℃; Inert atmosphere; Stage #2: malonic acid dimethyl ester With sodium methylate In tetrahydrofuran at 20℃; for 12h; Inert atmosphere; | A 11% B 68% |
3,4-dichloro-1,2,5-thiadiazole
3,6-dimethyl-2-(trimethylsilyl)phenyl triflate
Conditions | Yield |
---|---|
With cesium fluoride In tetrahydrofuran Inert atmosphere; | 67% |
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