N-スルホニルピリドン類と1,3-ブタジエンのDiels-Alder反応
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1-Arylsulfonyl-5-methoxycarbonyl-2(1H)-pyridones bearing an electron-withdrawing group at ortho or meta position for sulfonyl group were chemoselectively prepared using NaH as a base in good yields. Diels-Alder reactions of 1-arylsulfonyl-2(1H)-pyridones with 2, 3-dimethyl-1, 3-butadiene afforded stereoselectively quinolone derivatives under atmospheric pressures. But it seems the substituent group on the benzene ring have a little influence on the yields.
- 東北薬科大学の論文
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