The transformation of a chromene derivative into benzofurans via allene intermediates

DOI: 10.1016/S0040-4039(00)74164-5

Source and publish data:

Tetrahedron Letters p. 1871 - 1874 (1992)

Update date:2022-08-02

Topics:

Authors:

Gericke, Rolf

Lues, Inge

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Article abstract of DOI:10.1016/S0040-4039(00)74164-5

On LDA-treatment of chromene 1, allenyl phenol 3 is formed which recyclizes in solution. Acetate 4 gives benzofuran derivatives on thermal cyclization.

Full text of DOI:10.1016/S0040-4039(00)74164-5

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