2-Methylquinoline → 2-Methyl-1,2,3,4-tetrahydroquinoline

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반응 단계

In 60 ml of methylene chloride, 1.00 g of 2-methylquinoline was dissolved, and the catalyst-containing mixture was added. After cooling to −10° C., 8.4 ml of a mixed solvent of formic acid/triethylamine (molar ratio: 5/2) was added dropwise, and the mixture was stirred at the same temperature overnight to give 2-methyl-1,2,3,4-tetrahydroquinoline. The S-enantiomer was in excess and the optical purity was 86.4% ee.

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