A photochemical route to 2-alkenyl- and 2-ethynylbenzofurans

Sumathi, T. ; Balasubramanian, K. K. (1990) A photochemical route to 2-alkenyl- and 2-ethynylbenzofurans Tetrahedron Letters, 31 (26). pp. 3775-3778. ISSN 0040-4039

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00404...

Related URL: http://dx.doi.org/10.1016/S0040-4039(00)97468-9

Abstract

Intramolecular cyclisation of 1,5-biradicals generated by irradiation of o-alkenyloxy and o-alkynyloxybenzophenones led to a facile synthesis of 2-alkenyl-3-phenyl and 2-ethynyl-3-phenylbenzofurans.

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