Studies on Seven-membered Ring Compounds. XXXIV. Reactions between Tropylium Cation and Dienamines
スポンサーリンク
概要
- 論文の詳細を見る
Reaction of tropylium fluoroborate (I) with morpholine dienamine derived from 4,4a, 5,6,7,8-hexahydro-2 (3H)-naphthalenone (II) resulted in the hitherto unreported attack of the electrophile at the δ-position of the dienamine, and 8-tropyl- (VI) and 4a-tropyl-4,4a, 5,6,7,8-hexahydro-2 (3H)-naphthalenone (VII) were obtained. Pyrrolidine dienamines of Δ^4-3-oxosteroids (VIII, IX, and X) similarly gave the corresponding 6-tropyl-Δ^4-3-oxosteroids (XI, XII, and XIII) with I. Reaction of 7-ethoxy-1,3,5-cycloheptatriene (XVIII) with dienamines in the presence of acetic acid was also examined and 6-benzylidenetestosterone (XIX) and 6-benzylidenecholest-4-en-3-one (XX) were obtained respectively by the reaction of XVIII with dienamine of testosterone (VIII) and with that of cholest-4-en-3-one (IX).
- 社団法人日本薬学会の論文
- 1970-08-25
著者
-
渡辺 泰一郎
Chemical Research Laboratories Sankyo Co. Ltd.
-
相馬 信夫
Central Research Laboratories, Sankyo Co., Ltd.
-
渡辺 泰一郎
Central Research Laboratories, Sankyo Co., Ltd.
-
相馬 信夫
Central Research Laboratories Sankyo Co. Ltd.
関連論文
- Studies on Seven-membered Ring Compounds. XXVII. 2-Imino-2H-cycloheptoxazole Derivatives (1)
- Studies on Seven-membered Ring Compounds. XXIII. Reactions of Tropylium Ions Having Fused Heterocyclic System with Various Amines
- Studies on Seven-membered Ring Compounds. XXII. Preparation of Tropylium Ions Having Fused Heterocyclic Systems
- Studies on Seven-membered Ring Compounds. XX. Reactions of Troponeimine Derivatives. (2)
- Studies on Seven-membered Ring Compounds. XIX. Reactions of Troponeimine Derivatives. (1)
- Studies on Seven-membered Ring Compounds. XVII. Alkylation of Cycloheptimidazolone and Cyclohepta[b]pyrrolone
- Studies on Seven-membered Ring Compounds. XV. Preparations of Troponeimine Derivatives
- Synthesis of α-Amino-cycloheptatriene-1-acetic Acids and Their 7-Acylaminocephalosporin Derivatives
- Synthesis of Amino Acid and 4,5-Dihydro-6H-1,3-thiazine Derivatives for the Preparation of Cephalosporin Compounds
- 3-Trifluoromethylcephalosporins. II. Synthesis and in Vitro Antibacterial Activities of 3-Trifluoromethylcephalosporin Derivatives
- 3-Trifluoromethylcephalosporins. I. Total Synthesis of tert-Butyl (±)-7-Amino-3-trifluoromethyl-3-cephem-4-carboxylate
- Syntheses of Highly Antibacterial 3-Vinylcephalosporin Derivatives
- Studies on Anticoccidial Agents. VII. An Improved Synthesis of α^4-Norpyridoxol
- Studies on Seven-membered Ring Compounds. XXXVI. Synthesis of Azulene Derivatives by Ring Closure of β-Cycloheptatrienyl-substituted Carbonyl Compounds
- Studies on Seven-membered Ring Compounds. XXXV. Ring Closure of γ-Cycloheptatrienyl-substituted α, β-Unsaturated Carbonyl Compounds to Benzocycloheptene Derivatives
- Studies on Seven-membered Ring Compounds. XXXIV. Reactions between Tropylium Cation and Dienamines
- Studies on Seven-membered Ring Compounds. XXXIII. Reactions between Tropylium Cation and Enamines
- Studies on Seven-membered Ring Compounds. XXXVII. The Reaction of Benzotropones with Malononitrile
- Studies on Seven-membered Ring Compounds. XXX. Rearrangement of Dimethylamino Group in Cycloheptoxazole Derivatives