Reaktionen des Cumalinsäure-methylesters und Cumalinaldehyds mit ambidenten Nucleophilen
作者:Vratislav Kvita、Hanspeter Sauter、Brian Tuck
DOI:10.1002/hlca.19880710610
日期:1988.9.28
Reactions of Methyl Coumalate and Coumalaldehyde with Ambident Nucleophiles
香豆酸甲酯和香豆醛醛与环境亲核试剂的反应
Synthese von einigen 2H-Pyran-2-on-Derivaten
作者:Vratislav Kvita、Hanspeter Sauter
DOI:10.1002/hlca.19900730414
日期:1990.6.20
The Synthesis of Some 2H-Pyran-2-one Derivatives
某些2 H -Pyran-2-one衍生物的合成
Synthese von 2(1<i>H</i>)-Pyridonen aus 2<i>H</i>-Pyran-2-onen
作者:Vratislav Kvita
DOI:10.1055/s-1991-26600
日期:——
Synthesis of 2(1H)-Pyridones From 2H-Pyran-2-ones 5-Substituted and 4,5-disubstituted 2(1H)-pyridones (13 examples) with formyl, acyl, alkoxycarbonyl, and trifluoromethyl groups in the 5 position were prepared in 16-97% yield by amination of the corresponding 2H-pyran-2-ones with hexamethyldisilazane or alkyl(trimethylsilyl)amines.
2-Substituted 5-vinylpyrimidines, polymers obtainable therefrom and
申请人:Ciba-Geigy Corporation
公开号:US04476305A1
公开(公告)日:1984-10-09
The invention relates to 2-substituted 5-vinylpyrimidines of the formula ##STR1## wherein X is 2-pyridyl or 2-pyrimidyl, unsubstituted or substituted by methyl or ethyl groups. The compounds of formula (I) are suitable for the preparation of complex-forming or complexed, uncrosslinked or crosslinked polymers. Complexed polymers obtainable therefrom may be used as catalysts. Polymers complexed with Pd are particularly suitable for transvinylation reactions. Non-complexed polymers obtainable from compounds of formula (I) are suitable for use as metal ion extractors for different applications.