The Lewis-base-catalyzed enantioselective formal [4 + 2] annulation reaction of -acylamino-aryl MBH carbonates and electron-deficient olefins was developed. Tetrahydroquinolines with three sequential stereogenic centers containing a quaternary stereocenter were obtained in high yields with good enantioselectivity.
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http://dx.doi.org/10.1021/acs.orglett.3c00525 | DOI Listing |
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