Green, Ivan R.; Hugo, Victor I.; Oosthuisen, Francois J., South African Journal of Chemistry, 1994, vol. 48, # 1/2, p. 15 - 22
作者:Green, Ivan R.、Hugo, Victor I.、Oosthuisen, Francois J.、Eeden, Nestor van、Giles, Robin G. F.
DOI:——
日期:——
Synthesis of Some C‐4 Hydroxybenzo[<i>c</i>]pyrans: A New Approach
作者:Victor I. Hugo、Tebogo Masenya、Ivan R. Green
DOI:10.1080/00397910600592001
日期:2006.6.1
Abstract A new synthetic approach to the synthesis of some epimeric C‐4‐hydroxy‐benzo[c]pyrans is described. A key step in their formation is stereoisomerisation of a nonconjugated ortho alkenylphenylketone and ‐ester using palladium bisacetonitrile [bisacetonitriledichloropalladium(II)] to give the corresponding conjugated E stereoisomers which cyclize on treatment with meta‐chloroperbenzoic acid