Tetrahedron Letters p. 9191 - 9194 (1994)
Update date:2022-08-11
Topics:
Fitzgerald, John J.
Michael, Forrest E.
Olofson, R. A.
Treatment of benzocyclobuten-2-ols with MeLi affords o-tolualdehyde anions which in the presence of nitriles cyclize to 3-substituted isoquinolines.Examples include the synthesis of the alkaloid hypecumine from the precursors, 14 and 19 (1:1), in 50percen
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