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4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride

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Name

4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride

EINECS 249-220-0
CAS No. 28783-41-7 Density 1.143g/cm3
PSA 40.27000 LogP 2.52460
Solubility N/A Melting Point 212-215°C
Formula C7H10ClNS Boiling Point 242.9 °C at 760 mmHg
Molecular Weight 175.682 Flash Point 100.7 °C
Transport Information N/A Appearance Off-White Solid
Safety 26-36/37/39-37 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 28783-41-7 (4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride) Hazard Symbols N/A
Synonyms

Thieno[3,2-c]pyridine,4,5,6,7-tetrahydro-, hydrochloride (8CI,9CI);

Article Data 12

4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride Synthetic route

30433-91-1

[2-(2-thyenyl)ethyl]amine

50-00-0

formaldehyd

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

Conditions
ConditionsYield
Stage #1: [2-(2-thyenyl)ethyl]amine; formaldehyd In dichloromethane at 40 - 45℃;
Stage #2: With hydrogenchloride In dichloromethane; water; N,N-dimethyl-formamide at 20 - 70℃;
99%
Stage #1: [2-(2-thyenyl)ethyl]amine; formaldehyd In toluene for 1.5h; Reflux; Inert atmosphere; Dean-Stark;
Stage #2: With hydrogenchloride In 1,4-dioxane; toluene at 60℃; for 0.5h; Inert atmosphere;
98%
Stage #1: [2-(2-thyenyl)ethyl]amine; formaldehyd In 1,2-dichloro-ethane for 4h; Heating / reflux;
Stage #2: With hydrogenchloride In 1,2-dichloro-ethane; N,N-dimethyl-formamide at 70℃; for 4h;
90%
68559-49-9

N-methoxycarbonyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

Conditions
ConditionsYield
Stage #1: N-methoxycarbonyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine With sodium hydroxide In methanol for 12h; Reflux;
Stage #2: With hydrogenchloride In 1,4-dioxane pH=1;
82%
111954-31-5

N-methylene-2-(thien-2-yl)ethanamine

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In N,N-dimethyl-formamide
With hydrogenchloride In isopropyl alcohol at 60℃; for 5h;
107112-93-6

dihydro-6,7 thieno<3,2-c>pyridine

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

Conditions
ConditionsYield
Stage #1: dihydro-6,7 thieno<3,2-c>pyridine With methanol; sodium tetrahydroborate at 20℃; for 2h;
Stage #2: With hydrogenchloride
5402-55-1

2-thiophenethanol

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: triethylamine / dichloromethane / 2 h / -5 - 20 °C
2: formic acid / 8.5 h / 80 °C / Inert atmosphere
3: trifluoroacetic acid / 20 °C
4: sodium tetrahydroborate; methanol / 2 h / 20 °C
View Scheme
40412-06-4

2-(2-thienyl)ethyl tosylate

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: formic acid / 8.5 h / 80 °C / Inert atmosphere
2: trifluoroacetic acid / 20 °C
3: sodium tetrahydroborate; methanol / 2 h / 20 °C
View Scheme
24424-99-5

di-tert-butyl dicarbonate

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

230301-73-2

6,7-dihydro-4H-thieno[3,2-c]-pyridine-5-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 2h;100%
With triethylamine In dichloromethane at 20℃; for 4.5h;100%
With triethylamine In dichloromethane at 20℃; for 6h;92.3%
Stage #1: 6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride With potassium carbonate In 1,4-dioxane at 80℃; for 0.5h;
Stage #2: di-tert-butyl dicarbonate In 1,4-dioxane for 1h;
16.8 g
76-83-5

trityl chloride

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

109904-25-8

5-trityl-4,5,6,7-tetrahydro-tieno[3,2-c]pyridine

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 2h; Inert atmosphere;100%
With triethylamine In dichloromethane at 12 - 28℃;99%
With N-ethyl-N,N-diisopropylamine In acetonitrile for 3h;94%

C15H13ClO5S

28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

113665-84-2

(S)-(+)-clopidogrel

Conditions
ConditionsYield
With sodium carbonate In dichloromethane at 25 - 40℃; for 24h; Temperature;97.02%
28783-41-7

6,7-dihydro-4H-thieno[3,2-c]pyridine hydrochloride

100-44-7

benzyl chloride

55142-78-4

5-benzyl-4,5,6,7-tetrahydro-thieno[3,2-c]-pyridine

Conditions
ConditionsYield
With tetra(n-butyl)ammonium hydrogensulfate; potassium carbonate In acetonitrile at 70℃;97%

4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride Chemical Properties

IUPAC Name:4,5,6,7-tetrahydrothieno[3,2-c]pyridin-1-ium chloride
Molecular Formula:C7H10ClNS
Molecular Weight:175.679000 g/mol
Melting Point:212-215°C
CAS DataBase Reference:28783-41-7(CAS DataBase Reference)
Synonyms of 4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride(28783-41-7):
4,5,6,7-TETRAHYDROTHIENO[3,2,C] PYRIDINE HCL;4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE HYDROCHLORIDE;4,5,6,7-tetrahydrotieno[3,2-c]pyridinium chloride;4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE HCl(TTP);4,5,6,7-tetrahydrothieno[3,2-c]pyridinium chloride;Tetrahydrothieno pyridine HCl;4,5,6,7-Tetrahydrothieon[3,2-C]pyridine,HCl;4,5,6,7-Tetrahydrothieon[3,2-C]pyridine,hydrochloride
Categories of 4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride(28783-41-7):
Heterocyclic Compounds;Bases & Related Reagents;Heterocycles;Nucleotides;Sulfur & Selenium Compounds

4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride Uses

4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride(28783-41-7) is used as an intermediate for Plavix which is an anti-thrombosis drug.

4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride Safety Profile

Safety Information of 4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride(28783-41-7):
Risk Statements:36/37/38
36/37/38:Irritating to eyes, respiratory system and skin 
Safety Statements:26-36/37/39
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36/37/39:Wear suitable protective clothing, gloves and eye/face protection 

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