含窒素共役系の反応(第2報) : 共役Schiff Baseとアセチレンジカルボン酸ジメチルエステルとの反応
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Reactions were carried out on conjugated systems between carbon-nitrogen double bond in heterocycles and their side-chain carbon-nitrogen double bond with dimethyl acetylenedicarboxylate (II). Schiff bases (VIII) synthesized from ethanolamine with 9-phenanthridinecarboxaldehyde and 2-quinolinecarboxaldehyde easily reacted with II to give oxazolidine derivatives (X), which are products of Michael-type condensation. The Schiff base derived from β-phenethylamine with 9-phenanthridinecarboxaldehyde and 2-quinolinecarboxaldehyde gave only a red resin of unknown structure. Several other compounds (XIII) of the same type derived from aromatic aldehydes were also tested. All of these gave 1 : 2-addition products (XIV) with II, as is already known. In either of these experiments, Diels-Alder type adducts were not found.
- 社団法人日本薬学会の論文
- 1970-11-25
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