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2-CHLOROQUINOLINE-6-CARBALDEHYDE synthesis

5synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 5 steps
1: pyridine / dichloromethane / 20 °C
2: sulfuric acid / 100 °C
3: trichlorophosphate / 1 h / Heating / reflux
4: tetrahydrofuran; hexane / 1 h / -78 °C
5: tetrahydrofuran; hexane / -78 - 20 °C

References:

SMITHKLINE BEECHAM CORPORATION WO2006/132739, 2006, A2