ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

Base Information

Chemical Name:ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate
CAS No.:246537-18-8
Molecular Formula:C₂₃H₁₇N₃O₃S
Molecular Weight:415.472
Hs Code.:

Synonyms:ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

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Chemical Property of ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

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Technology Process of ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

There total 6 articles about ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate 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: 84.0%

: ethyl (6-cyano-3,4-diphenylthieno[2,3-c]pyridazin-5-yloxy)-acetate

: 246537-18-8
ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

Guidance literature:: With sodium ethanolate; In ethanol; for 0.166667h; Heating;
DOI:10.1007/PL00010290

Reference yield: 70.0%

: 105-39-5
chloroacetic acid ethyl ester

: 246537-12-2
6-cyano-3,4-diphenyl-5-hydroxythieno[2,3-c]pyridazine

: 246537-18-8
ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

Guidance literature:: With potassium carbonate; In N,N-dimethyl-formamide; at 100 ℃; for 10h;
DOI:10.1007/PL00010290

Reference yield:

: 54108-26-8
ethyl 2,3-dihydro-5,6-diphenyl-3-oxopyridazine-4-carboxylate

: 246537-18-8
ethyl 7-amino-3,4-diphenylfuro[2',3':4,5]thieno[2,3-c]pyridazine-6-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1: 70 percent / P₂S₅ / pyridine / 5 h / Heating

2: 67 percent / NaOAc / ethanol / 10 h / Heating

3: 74 percent / K₂CO₃ / dimethylformamide / 2 h / 100 °C

4: 84 percent / NaOEt / ethanol / 0.17 h / Heating

With tetraphosphorus decasulfide; sodium ethanolate; sodium acetate; potassium carbonate; In pyridine; ethanol; N,N-dimethyl-formamide; 1: Substitution / 2: cyclocondensation / 3: Etherification / 4: Thorpe-Ziegler cyclization;
DOI:10.1007/PL00010290