5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine

Base Information

• Chemical Name: 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine
• CAS No.: 143770-21-2
• Molecular Formula: C₁₄H₁₁ClN₆S
• Molecular Weight: 330.801

Synonyms:5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine

Chemical Property of 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine

Chemical Property:

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Technology Process of 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine

There total 4 articles about 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine 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: 69.0%

4-chloro-2-(4-chlorophenyl)amino-5,6-dimethylthieno<2,3-d>pyrimidine (143770-16-5) → 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine (143770-21-2)

Guidance literature:

With sodium azide; ammonium chloride; In dimethyl sulfoxide; at 20 - 60 ℃;

DOI:10.1002/jhet.5570290435

Reference yield:

4-chloro-aniline (106-47-8) → 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine (143770-21-2)

Guidance literature:

Multi-step reaction with 3 steps

1: 56 percent / conc. HCl / 18 h / 180 - 200 °C

2: 56 percent / POCl₃, DMF / 18 h / 110 - 120 °C

3: 69 percent / NH₄Cl, NaN₃ / dimethylsulfoxide / 20 - 60 °C

With hydrogenchloride; sodium azide; ammonium chloride; N,N-dimethyl-formamide; trichlorophosphate; In dimethyl sulfoxide;

DOI:10.1002/jhet.5570290435

Reference yield:

5,6-dimethyl-2-methylthio-3,4-dihydrothieno[2,3-d]pyrimidin-4-one (53074-16-1) → 5-<4-chlorophenyl>amino-8,9-dimethyltetrazolo<1,5-c>thieno<3,2-e>pyrimidine (143770-21-2)

Guidance literature:

Multi-step reaction with 3 steps

1: 56 percent / conc. HCl / 18 h / 180 - 200 °C

2: 56 percent / POCl₃, DMF / 18 h / 110 - 120 °C

3: 69 percent / NH₄Cl, NaN₃ / dimethylsulfoxide / 20 - 60 °C

With hydrogenchloride; sodium azide; ammonium chloride; N,N-dimethyl-formamide; trichlorophosphate; In dimethyl sulfoxide;

DOI:10.1002/jhet.5570290435

upstream raw materials:

4-chloro-2-(4-chlorophenyl)amino-5,6-dimethylthieno<2,3-d>pyrimidine

4-chloro-aniline

5,6-dimethyl-2-methylthio-3,4-dihydrothieno[2,3-d]pyrimidin-4-one

2-<4-chlorophenyl>amino-5,6-dimethylthieno<2,3-d>pyrimidin-4(3H)-one

Downstream raw materials:

4-amino-2-<4-chlorophenyl>amino-5,6-dimethylthieno<2,3-d>pyrimidine

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