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ChemicalBook CAS DataBase List 7-bromo-4-chloro-3-nitroquinoline
723280-98-6

7-bromo-4-chloro-3-nitroquinoline synthesis

2synthesis methods
-

Yield:723280-98-6 92%

Reaction Conditions:

with trichlorophosphate in N,N-dimethyl-formamide at 85;Inert atmosphere;

Steps:

1.2; 5.2

Step 2: To a solution of compound 5-2 (25.0 g, 93.75 mmol) was in POCh (70 mL) was added anhydrous DMF (5 mL). The reaction mixture was heated to 85 °C under nitrogen overnight. The reaction mixture was cooled to room temperature. The precipitate was collected by fdtration, washed with water and dried in high vacuum to give compound 5-3 (24.0 g, yield: 92%) as a yellow solid.

References:

WO2020/163118,2020,A1 Location in patent:Paragraph 00154-00155; 00157-00158; 00182-00184

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