Synthesis of 3,3'-biquinazoline-4,4'-diones and 1,3,4-oxadiazoles from isatoic anhydride.

• 長原 勝彦

• 高田 純

抄録

Treatment of isatoic anhydrides with hydrazine hydrate gave 1, 2-bis-(o-aminobenzoyl)-hydrazines (IIa-c). The reaction of IIa, b with ethoxymethylenemalononitrile, ethyl ethoxymethylenecyanoacetate or triethyl orthoformate afforded new 3, 3'-bisquinazoline-4, 4'-diones (IIIa, b and IVa-d) in good yields. On the other hand, the reaction of IIa-c with polyphosphoric acid furnished 2, 5-diaryl-1, 3, 4-oxadiazole derivatives in high yields.

収録刊行物

• ＣＨＥＭＩＣＡＬ　＆　ＰＨＡＲＭＡＣＥＵＴＩＣＡＬ　ＢＵＬＬＥＴＩＮ

  ＣＨＥＭＩＣＡＬ　＆　ＰＨＡＲＭＡＣＥＵＴＩＣＡＬ　ＢＵＬＬＥＴＩＮ 25 (10), 2713-2717, 1977

  公益社団法人 日本薬学会

キーワード

• polyphosphoric acid

詳細情報

• CRID: 1390001204170427008
• NII論文ID: 110003622252
• NII書誌ID: AA00602100
• DOI: 10.1248/cpb.25.2713
• ISSN: 13475223
• ISSN: 00092363
• Web Site: http://www.jstage.jst.go.jp/article/cpb1958/25/10/25_10_2713/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1978106749
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可