4,7-Dichlorofuro[2,3-d]pyridazine

Base Information

• Chemical Name: 4,7-Dichlorofuro[2,3-d]pyridazine
• CAS No.: 13177-70-3
• Molecular Formula: C6H2Cl2N2O
• Molecular Weight: 189.001
• Hs Code.: 2934999090
• DSSTox Substance ID: DTXSID70500062
• Nikkaji Number: J150.448G
• Wikidata: Q82351406
• Mol file: 13177-70-3.mol

Synonyms:4,7-dichlorofuro[2,3-d]pyridazine;13177-70-3;Furo[2,3-d]pyridazine, 4,7-dichloro-;Furo[2,3-d]pyridazine, 4,7-dichloro;4,7-DICHLORO-FURO[2,3-D]PYRIDAZINE;SCHEMBL3606506;DTXSID70500062;AKOS005266549;PB25094;AS-80208;CS-0054357;P10630

Chemical Property of 4,7-Dichlorofuro[2,3-d]pyridazine

Chemical Property:

• PSA: 38.92000
• LogP: 2.52960
• Storage Temp.: 2-8°C
• XLogP3: 2.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 187.9544181
• Heavy Atom Count: 11
• Complexity: 158

Purity/Quality:

NLT 98% ^*data from raw suppliers

4,7-Dichloro-furo[2,3-d]pyridazine 95% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=COC2=C1C(=NN=C2Cl)Cl

Technology Process of 4,7-Dichlorofuro[2,3-d]pyridazine

There total 9 articles about 4,7-Dichlorofuro[2,3-d]pyridazine 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: 59.0%

5,6-dihydrofuro[2,3-d]pyridazine-4,7-dione (13177-71-4) → 4,7-dichlorofuro[2,3-d]pyridazine (13177-70-3)

Guidance literature:

With pyridine; trichlorophosphate; for 4h; Heating / reflux;

Reference yield:

methyl 3-methoxycarbonylfuran-2-carboxylate (52900-79-5) → 4,7-dichlorofuro[2,3-d]pyridazine (13177-70-3)

Guidance literature:

Multi-step reaction with 3 steps

1: N₂H₄*H₂O

2: acetic acid / Heating

3: POCl₃, Py

With pyridine; hydrazine hydrate; trichlorophosphate; In acetic acid;

Reference yield:

furan-2,3-dicarboxylic acid (4282-24-0) → 4,7-dichlorofuro[2,3-d]pyridazine (13177-70-3)

Guidance literature:

Multi-step reaction with 3 steps

1.1: chloro-trimethyl-silane / 15.5 h / 20 °C

2.1: ethanol; water; hydrazine / 5.5 h / Heating / reflux

2.2: 4 h / Heating / reflux

3.1: pyridine; trichlorophosphate / 4 h / Heating / reflux

With pyridine; chloro-trimethyl-silane; ethanol; water; hydrazine; trichlorophosphate;

upstream raw materials:

7-chloro-5H-furo[2,3-d]pyridazin-4-one

5,6-dihydrofuro[2,3-d]pyridazine-4,7-dione

furan-2,3-dicarboxylic acid dihydrazide

methyl 3-methoxycarbonylfuran-2-carboxylate

Downstream raw materials:

Furo<2,3-d>pyridazin

4-chloroanilino-7-chlorofuro[2,3-d]pyridazine

4-chloro-7-[N-(4-chlorophenyl)amino]-[2,3-d]furopyridazine

4-(4-methoxyphenylamino)-7-chlorofuro-[2,3-d]pyridazine