Chemistry is traditionally divided into organic and inorganic chemistry. Formula: C9H7NO, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 1532-72-5
An inexpensive copper-catalyzed cascade regioselective alkylation, followed by cyclocondensation of quinoline N-oxides with alpha-diazo esters has been achieved successfully to provide heteroarene-containing conjugated pi-systems. The developed method is simple, straightforward, and economical with a broad range of substrate scope. The dual role of copper catalyst in the C?H bond functionalization and in Lewis acid-promoted cyclization was explored.
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H440N – PubChem