
Monatshefte fur Chemie p. 1439 - 1444 (1988)
Update date:2022-08-03
Topics:
Bartsch, Herbert
Erker, Thomas
Neubauer, Gustav
Reaction of C2 unsubstituted benzoxazine derivative 2b with α-bromo compounds only yields the substitution products 4a, b and 7, whereas from the 2-benzoxazine carboxylate 9b the tricyclic heterocycle 12 is obtained.
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