Reaction of spiro[piperidine-4,2'-(1',2',3',4'-tetrahydroquinazolin)]-4'-ones with acid anhydrides.
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抄録
Acylation of spiro[piperidine-4, 2'-(1', 2', 3', 4'-tetrahydroquinazolin)]-4'-ones (1d, 4, 6, and 7) was attempted. In all cases, the resulting products were not the corresponding acyl derivatives but two types of products (2 or 3 and 5). Heating 1d, the derivative having hydrogen atoms on the N(1) and N(3)-positions of spiro[piperidine-4, 2'-(1', 2', 3', 4'-tetrahydroquinazolin)]-4'-ones with acetic anhydride or benzoic anhydride gave 1-(1-benzyl-1, 2, 5, 6-tetrahydro-4-pyridyl)-2-methyl-1, 4-dihydroquinazolin-4-one (2) or 1-(1-benzyl-1, 2, 5, 6-tetrahydro-4-pyridyl)-2-methyl-1, 4-dihydroquinazolin-4-one (3), respectively. On the other hand, heating 4, the N(1)-substituted derivative of 1d, with acetic anhydride gave 2-benzyl-5-methyl-1, 2, 3, 4, 5, 10-hexahydro-benzo[b]-1, 6-naphthyridin-10-one (5). The N(3)-substituted derivatives (6 and 7) of 1d did not react with acetic anhydride.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 28 (9), 2623-2628, 1980
公益社団法人 日本薬学会
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詳細情報
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- CRID
- 1390282679144058240
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- NII論文ID
- 110003624075
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- NII書誌ID
- AA00602100
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- COI
- 1:CAS:528:DyaL3MXht1Wntrs%3D
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- ISSN
- 13475223
- 00092363
- http://id.crossref.org/issn/00092363
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可