Hetero Diels–Alder trapping of 3-methylene-1,2,4-[3H]naphthalenetrione: an efficient protocol for the synthesis of α- and β-lapachone derivatives
作者:Vijay Nair、P.M Treesa
DOI:10.1016/s0040-4039(01)00741-9
日期:2001.7
3-Methylene-1,2,4-[3H]naphthalenetrione, generated by Knoevenagel condensation of 2-hydroxy-1,4-naphthoquinone with formaldehyde, undergoes facile hetero Diels-Alder reaction with various dienophiles affording derivatives of alpha- and beta -lapachone. (C) 2001 Published by Elsevier Science Ltd.
CASSIS, R.;TAPIA, R.;VALDERRAMA, J. A., J. HETEROCYCL. CHEM., 1984, 21, N 3, 865-868