Reaction of Biguanides and Related Compounds. IX. Condensation of N-Amidino-O-alkylisourea and 1-Substituted 3-Amidino-2-thiourea with Benzil
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The reactions of N-amidino-O-alkylisourea and 1-substituted 3-amidino-2-thiourea with benzil were examined. The reaction of N-amidino-O-alkylisourea with an equivalent amount of benzil in ethanol gave 5, 5-diphenylglycocyamidine by heating for 10 hr under reflux, 5, 5-diphenylglycocyamidine and 2-alkoxyamidinylidene-5, 5-diphenylhydantoin by heating for 2 hr under the similar conditions and 2-alkoxyamidinylidene-5, 5-diphenylhydantoin and 3a, 6a-diphenylglycoluril-2, 5-dialkoximidoylimide by treatment for 1 hr at room temperature. Similarly, heating of 1-aryl-3-amidino-2-thiourea with benzil in ethanol for 10 hr under reflux gave 5, 5-diphenylglycocyamidine. On the other hand, by heating in ethanol in the presence of potassium hydroxide for 2 hr under reflux, 2-arylthiocarbamoyl-5, 5-diphenylglycocyamidine.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 22 (1), 1-7, 1974
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204170713984
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- NII論文ID
- 110003632963
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- NII書誌ID
- AA00602100
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- DOI
- 10.1248/cpb.22.1
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- COI
- 1:CAS:528:DyaE2cXltlKjt7s%3D
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- ISSN
- 13475223
- 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
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- 抄録ライセンスフラグ
- 使用不可