期刊
SYNLETT
卷 -, 期 10, 页码 1549-1553出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0029-1219936
关键词
green chemistry; homogeneous catalysis; benzylation; bismuth; hydroalkylation
资金
- Fonds der Chemischen Industrie
- Evonik-Degussa
Effective metal-catalyzed benzylations of 4-hydroxycoumarin have been developed. Employing a low amount of a cheap, nontoxic, and air-stable catalyst the 3-alkylated hydroxycoumarins were isolated in high yields after short reaction times. Applying this new methodology two widely used anticoagulants phenprocoumon and coumatetralyl were synthesized applying mild reaction conditions.
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