methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

Base Information

Chemical Name:methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate
CAS No.:1356113-34-2
Molecular Formula:C₁₈H₁₂BrFN₂O₅S₂
Molecular Weight:499.338
Hs Code.:

Synonyms:methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

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Chemical Property of methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

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Technology Process of methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

There total 7 articles about methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-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:

: 351003-45-7
2-bromo-4-fluorobenzene-1-sulfonyl chloride

: 1356113-36-4
methyl 7-amino-4H-chromeno[3,4-d]isothiazole-6-carboxylate

: 1356113-34-2
methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

Guidance literature:: In pyridine; dichloromethane; at 20 ℃;

Reference yield:

: 64241-01-6
methyl 2-amino-6-hydroxybenzoate

: 1356113-34-2
methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

Guidance literature:: Multi-step reaction with 7 steps

1.1: sodium hydrogencarbonate; water / ethyl acetate / 20 °C

1.2: 7.8 h / 20 °C

2.1: potassium tert-butylate / tetrahydrofuran / 60 °C

2.2: 0.42 h / 20 - 60 °C

3.1: dichloromethane / 20 °C

3.2: 0.5 h

3.3: 5 h / 20 °C

4.1: trichlorophosphate / Trichloroethylene / 2.67 h / 60 °C

5.1: ammonium thiocyanate / acetone / 1.5 h / 60 °C

6.1: sulfuric acid / methanol / 75 °C

7.1: dichloromethane; pyridine / 20 °C

With sulfuric acid; potassium tert-butylate; water; ammonium thiocyanate; sodium hydrogencarbonate; trichlorophosphate; In tetrahydrofuran; pyridine; methanol; dichloromethane; Trichloroethylene; ethyl acetate; acetone;

Reference yield:

: 1356113-42-2
methyl 7-tert-butylcarbonylamino-4-chloro-3-formyl-2H-chromene-8-carboxylate

: 1356113-34-2
methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-chromeno[3,4-d]isothiazole-6-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: ammonium thiocyanate / acetone / 1.5 h / 60 °C

2: sulfuric acid / methanol / 75 °C

3: dichloromethane; pyridine / 20 °C

With sulfuric acid; ammonium thiocyanate; In pyridine; methanol; dichloromethane; acetone;