Efficient microwave assisted synthesis of optically active bicyclic 2-pyridinones via Δ2-thiazolines

被引:38
作者
Emtenas, Hans [1 ]
Taflin, Camilla [1 ]
Almqvist, Fredrik [1 ]
机构
[1] Umea Univ, Dept Chem, SE-90187 Umea, Sweden
关键词
cycloaddition; Meldrum's acid; microwave; pyridone; thiazoline; 2-pyridinone;
D O I
10.1023/B:MODI.0000006800.46154.99
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A new efficient synthesis of optically active bicyclic 2-pyridiones has been developed using microwave irradiation. The synthesis is a two-step procedure via Delta(2)-thiazolines, which only requires a 3 + 2 min reaction time compared to 2 days when using conventional heating. The optimized conditions proved to be suitable for the synthesis of a small library in excellent yields and with limited racemizations.
引用
收藏
页码:165 / 169
页数:5
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