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

Base Information

• Chemical Name: 4,5,6,7-Tetrahydrothieno[2,3-c]pyridine
• CAS No.: 62019-71-0
• Molecular Formula: C7H9NS
• Molecular Weight: 139.221
• Hs Code.: 2934999090
• European Community (EC) Number: 832-330-3
• DSSTox Substance ID: DTXSID20491517
• Nikkaji Number: J3.364.503A

Synonyms:4,5,6,7-tetrahydrothieno[2,3-c]pyridine;62019-71-0;4H,5H,6H,7H-thieno[2,3-c]pyridine;4,5,6,7-tetrahydro-thieno[2,3-c]pyridine;SCHEMBL11088;THIENO[2,3-C]PYRIDINE, 4,5,6,7-TETRAHYDRO-;DTXSID20491517;HXNOEHIMWZDRTK-UHFFFAOYSA-N;MFCD08752872;AKOS005144509;PB17573;BB 0261482;CS-0183403;FT-0730564;EN300-103621;P10653;F8881-3466

Chemical Property of 4,5,6,7-Tetrahydrothieno[2,3-c]pyridine

Chemical Property:

• PSA: 40.27000
• LogP: 1.72260
• XLogP3: 1
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 139.04557046
• Heavy Atom Count: 9
• Complexity: 105

Purity/Quality:

97% ^*data from raw suppliers

4,5,6,7-tetrahydrothieno[2,3-c]pyridine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CNCC2=C1C=CS2

Technology Process of 4,5,6,7-Tetrahydrothieno[2,3-c]pyridine

There total 2 articles about 4,5,6,7-Tetrahydrothieno[2,3-c]pyridine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.8%

2-(3-thienyl)ethylamine (59311-67-0) + formaldehyd (50-00-0,30525-89-4,61233-19-0) → 4,5,6,7-tetrahydro-thieno[2,3-c]pyridine (62019-71-0)

Guidance literature:

2-(3-thienyl)ethylamine; formaldehyd; With hydrogenchloride; In water; at 80 - 85 ℃; for 0.5h;

With sodium hydrogencarbonate; In water; at 20 ℃;

DOI:10.1080/00397911.2011.635393

Reference yield:

2-(3-thienyl)ethylamine (59311-67-0) → 4,5,6,7-tetrahydro-thieno[2,3-c]pyridine (62019-71-0)

Guidance literature:

Multi-step reaction with 3 steps

1: 2 h / Reflux

2: trichlorophosphate / acetonitrile / 5 h

3: sodium tetrahydroborate / methanol / 2 h

With sodium tetrahydroborate; trichlorophosphate; In methanol; acetonitrile;

DOI:10.1016/j.bmcl.2018.05.019

Reference yield: 87.2%

4,5,6,7-tetrahydro-thieno[2,3-c]pyridine (62019-71-0) + methyl 2-bromo-2-(2-chlorophenyl)acetate (85259-19-4,622835-93-2,66504-71-0) → methyl 2-(2-chlorophenyl)-2-(4,5-dihydrothieno[2,3-c]pyridin-6(7H)-yl)acetate (144457-43-2)

Guidance literature:

methyl 2-bromo-2-(2-chlorophenyl)acetate; With potassium carbonate; In methanol; water; at 25 ℃; for 0.166667h;

4,5,6,7-tetrahydro-thieno[2,3-c]pyridine; In methanol; water; at 60 - 65 ℃; for 6h;

DOI:10.1080/00397911.2011.635393

upstream raw materials:

2-(3-thienyl)ethylamine

formaldehyd

Downstream raw materials:

2-(4,5,6,7-tetrahydrothieno<2,3-c>pyridin-6-yl)benzaldehyde

6-(tert-butoxycarbonyl)-4,5,6,7-tetrahydrothieno [2,3-c]pyridine-2-carboxylic acid

1-(6-acetyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-4-[4-(4-chlorophenyl)piperidin-1-yl]butan-1-one

C₁₆H₁₄ClN₃OS

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