2,4-Dichloro-7-methylthieno[3,2-d]pyrimidine

Base Information

• Chemical Name: 2,4-Dichloro-7-methylthieno[3,2-d]pyrimidine
• CAS No.: 35265-83-9
• Molecular Formula: C7H4 Cl2 N2 S
• Molecular Weight: 219.094
• Hs Code.: 2934999090
• DSSTox Substance ID: DTXSID50428053
• Wikidata: Q72466986
• Mol file: 35265-83-9.mol

Synonyms:2,4-dichloro-7-methylthieno[3,2-d]pyrimidine;35265-83-9;MFCD08061253;2,4-dichloro-7-methyl-thieno[3,2-d]pyrimidine;SCHEMBL358761;AMY5543;DTXSID50428053;WUXYWALKGQDXFI-UHFFFAOYSA-N;CS-M2510;AKOS015919887;PB14528;AC-30315;DS-11392;SY067296;2,4-dichloro-7-metylthieno[3,2-d]pyrimidine;2,4-dichloro-7-methylthieno [3,2-d]pyrimidine;2,4-dichloro-7-methylthieno[ 3,2-d]pyrimidine;2,4-dichloro-7-methylthieno[3,2-d] pyrimidine;A874661;J-507171

Chemical Property of 2,4-Dichloro-7-methylthieno[3,2-d]pyrimidine

Chemical Property:

• Vapor Pressure: 0.00308mmHg at 25°C
• Refractive Index: 1.688
• Boiling Point: 293.1ºC at 760 mmHg
• PKA: -0.48±0.40(Predicted)
• Flash Point: 131.1ºC
• PSA: 54.02000
• Density: 1.568g/cm3
• LogP: 3.30650
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• XLogP3: 3.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 217.9472247
• Heavy Atom Count: 12
• Complexity: 181

Purity/Quality:

97% ^*data from raw suppliers

2,4-Dichloro-7-methylthieno[3,2-d]pyrimidine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CSC2=C1N=C(N=C2Cl)Cl

Technology Process of 2,4-Dichloro-7-methylthieno[3,2-d]pyrimidine

There total 5 articles about 2,4-Dichloro-7-methylthieno[3,2-d]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: 95.4%

7-methylthieno<3,2-d>pyrimidine-2,4-dione (35265-81-7) → 2,4-dichloro-7-methyl-thieno[3,2-d]pyrimidine (35265-83-9)

Guidance literature:

With N,N-dimethyl-formamide; trichlorophosphate; at 110 ℃; for 2h;

DOI:10.1016/j.ejmech.2021.113357

Reference yield: 55.5%

7-methylthieno[3,2-d]pyrimidine-2,4-diol (35265-81-7) → 2,4-dichloro-7-methyl-thieno[3,2-d]pyrimidine (35265-83-9)

Guidance literature:

With trichlorophosphate; at 80 ℃;

Reference yield:

3-amino-4-methyl-2-thiophenecarboxylic acid methyl ester (85006-31-1) → 2,4-dichloro-7-methyl-thieno[3,2-d]pyrimidine (35265-83-9)

Guidance literature:

Multi-step reaction with 2 steps

1.1: acetonitrile / 0.25 h

1.2: 0.25 h / 70 °C

2.1: trichlorophosphate / 0.25 h / 180 °C / microwave

With trichlorophosphate; In acetonitrile;

upstream raw materials:

7-methylthieno<3,2-d>pyrimidine-2,4-dione

urea

3-amino-4-methyl-2-thiophenecarboxylic acid methyl ester

7-methylthieno[3,2-d]pyrimidine-2,4-diol

Downstream raw materials:

2-Chloro-4-cyclohexylamino-7-methylthieno[3,2-d] pyrimidine

2-Chloro-4-(trans-cinnamylamino)-7-methylthieno[3,2-d] pyrimidine

4-(2-chloro-7-methylthieno[3,2-d]pyrimidin-4-yl)morpholine

2-chloro-thieno[3,2-d]pyrimidine-7-carbaldehyde