Treatment of (hetero)aryl halides with 2-(1-alkynyl)benzoic acids or (Z)-2-en-4-ynoic acids in the presence of K2CO3 and a catalytic amount of Pd(PPh3)(4) provides reaction mixtures in which stereodefined 3-[(1,1-unsymetrically disubstituted)methylidene]isobenzofuran-1(3H)-ones and stereodefined 5-[(1,1-unsymmetrically disubstituted)methylidene]furan-2(5H)-ones respectively, are the major products. (C) 2000 Elsevier Science Ltd. All rights reserved.
Autori interni: | |
Autori: | Rossi, Renzo; Bellina, Fabio; Biagetti, M; Catanese, A; Mannina, L. |
Titolo: | Palladium-catalyzed synthesis of stereodefined 3-[(1,1-unsymmetrically disubstituted)methylidene]isobenzofuran-1(3H)-ones and stereodefined 5-[(1,1-unsymmetrically disubstituted)methylidene]furan-2(5H)-ones |
Anno del prodotto: | 2000 |
Digital Object Identifier (DOI): | 10.1016/S0040-4039(00)00806-6 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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