Addition reaction of carboxylic anhydrides to the carbon-nitrogen double bond of unsubstituted cyclic imidates.
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概要
- 論文の詳細を見る
Acyclic and cyclic (SAn and GAn) carboxylic anhydrides were added at room temperature to the C=N bond of unsubstituted cyclic imidates of 2-oxazoline (OZO) and 5,6-dihydro-4<I>H</I>-1,3-oxazine (OZI) to give addition products quantitatively. In contrast to these findings, the reactions of acetyl halides with OZO and OZI yielded ringopened products and the reactions of carboxylic anhydrides with 2-benzyl-2-oxazoline (BzOZO) afforded also the ring-opened products. The bicyclic addition product of OZO with SAn is equilibrated with a mixture of starting materials. The stereochemistry of addition products having a six-membered ring system is discussed.
- 公益社団法人 日本化学会の論文
著者
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Saegusa Takeo
Department Of Synthetic Chemistry Faculty Of Engineering Kyoto University
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Kobayashi Shiro
Department Of Material Chemistry Graduate School Of Engineering Kyoto University
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Isobe Michihisa
Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University
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