HECK REACTION ON ANTHRAQUINONE DERIVATIVES - LIGAND, SOLVENT, AND SALT EFFECTS

被引:143
作者
CABRI, W [1 ]
CANDIANI, I [1 ]
DEBERNARDINIS, S [1 ]
FRANCALANCI, F [1 ]
PENCO, S [1 ]
SANTI, R [1 ]
机构
[1] IST GUIDO DONEGANI SPA,I-28100 NOVARA,ITALY
关键词
D O I
10.1021/jo00020a020
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The palladium-catalyzed Heck reaction of trifluoromethanesulfonates of anthraquinoid systems is described. The outcome of the reaction between methyl acrylate 4 and 1-(9,10-anthraquinoyl)trifluoromethanesulfonate 7 (reduction versus arylation) is strongly correlated to the choice of ligand, solvent, and added salt. The results are explained in terms of different coordination-insertion pathways as a function of the reaction conditions. Best conditions have been transferred to the synthesis of novel anthracyclinone, 4-demethoxy-4-(2'-methoxycarbonyl)ethenyl-13-dioxolanyldaunomycinone 5.
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页码:5796 / 5800
页数:5
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