Studies on the Heterocyclic Compounds. XIX. A Novel Ring Isomerization of 3-Ylideneaminoimidazo [4,5-c] pyridazines

スポンサーリンク

概要

• 論文の詳細を見る

• Several 3-ylideneaminoimidazo [4,5-c] pyridazines (IV and VI) were synthesized for the investigation of the ring isomerization reaction. The reactions of IVa, IVb, IVc, and IVd with 5% or 50% acetic acid gave VIII as the ring isomerization product. Similarly IVe afforded X. In the case of IVd, intermediate product (IXd) was obtained by the reaction with 50% acetic acid. This compound (IXd) was converted to VIII by the treatment with 70% acetic acid. The possible reaction mechanism was proposed.

• 公益社団法人日本薬学会の論文
• 1975-08-25

著者

• 木下 敏夫

  Faculty of Pharmaceutical Sciences, Nagasaki University

• 梁井 光二

  Faculty Of Pharmaceutical Sciences Nagasaki University

• 武田 成子

  Faculty of Pharmaceutical Sciences, Nagasaki University

• 木下 敏夫

  School of Pharmaceutical Sciences, Nagasaki University

• 西村 正邦

  Faculty of Pharmaceutical Sciences, Nagasaki University

• 武田 成子

  Faculty Of Pharmaceutical Sciences Nagasaki University

• 木下 敏夫

  School Of Pharmaceutical Sciences Nagasaki University

• 西村 正邦

  Faculty Of Pharmaceutical Sciences Nagasaki University

• 梁井 光二

  Faculty of Pharmaceutical Sciences, Nagasaki University

関連論文

• Stable Sulfur Ylides. XII. : Reaction of 3-Alkyl(aryl)thio-silyloxydienes Derived from Stable Sulfur Ylides with Aromatic Aldehydes. : Synthesis and Structure of Thiolanium Ylides
• SYNTHESIS OF BICYCLO [4. 3. 0] NONENONE AND BICYCLO [3. 3. 0] OCTENONE DERIVATIVES BY INTRAMOLECULAR WADSWORTH-EMMONS REACTION : FORMAL SYNTHESIS OF THE SESQUITERPENE CEDRENE
• Pyrimidine Derivatives. X. Synthesis of New Tricyclic Hetero Compounds Possessing a Pyrimidine Ring : 8,1,3,10-Thiatriazatricyclo[4.3.0.0^]-dodecanes and 8,1,3,10-Thiatriazatricyclo[4.4.0.0^]tridecanes
• Alkaloids of the Amaryllidaceae. A New Alkaloid, Sanguinine, from Lycoris sanguinea MAXIM. var. Kiushiana MAKINO, and Pretazettine from Lycoris radiata HERB.
• Studies on the Heterocyclic Compounds. XXI. A New Alkylation of Pyridazines with Nitromethane and Nitroethane
• Studies on the Heterocyclic Compounds. XX. The Reaction of 4-Cyano-3,6-dichloropyridazine with Amines
• Studies on the Heterocyclic Compounds. XIX. A Novel Ring Isomerization of 3-Ylideneaminoimidazo [4,5-c] pyridazines
• 複素環化合物の研究(第18報)Imidazo[1,2-c]-およびPyrimido[1,2-c]pyrimidine誘導体の合成
• Studies on the Pyridazine Derivatives. XVII. Structural Studies on the Product of 3-Hydrazino-4-aminopyridazine with Formic Acid (A Novel Ring Isomerization)
• Studies on the Pyridazine Derivatives. XVI. Reaction of 3-Alkoxy-4-nitro-(and 4,6-dinitro) pyridazine 1-Oxides with Amines
• Studies on the Pyridazine Derivatives. XIV. Synthesis and Reaction of Pyrimido [4,5-c] pyridazines
• Studies on the Synthesis of Pyridazine Derivatives. XIII. Synthesis of Imidazo-[4,5-d]- and v-Triazolo[4,5-d]pyridazine Derivatives and Reaction of 4-Alkoxy-v-triazolo[4,5-d]pyridazines with Various Amines
• Studies on the Synthesis of Pyridazine Derivatives. XII. Synthesis of 4,5-Diaminopyridazine Derivatives
• Studies on the Synthesis of Pyridazine Derivatives. X. Reaction of 3,6-Dimethoxy-4-nitropyridazine 1-Oxide with Alkyl Halides
• Studies on the Synthesis of Pyridazine Derivatives. IX. Synthesis of 10H-Pyridazino (3,2-b) quinazolin-10-one and Its Derivatives. (3)
• Pyridazine誘導体の合成研究(第8報) : Alkoxypyridazine N-Oxide類のエーテル交換反応について
• 3,6-Dimethoxy-4-nitropyridazine 1-Oxideとハロゲン化アルキルとの反応
• Pyridazine誘導体の合成研究(第7報) : 3,6-Dialkoxypyridazine 1-Oxide類とハロゲン化アルキルおよびハロゲン化アシルとの反応 その2
• Pyridazine誘導体の合成研究(第6報) : 3,6-Dialkoxypyridazine 1-Oxide類とハロゲン化アルキルおよびハロゲン化アシルとの反応 その1
• Pyridazine誘導体の合成研究(第5報) : 10H-Pyridazino[3,2-b]quinazolin-10-oneおよびその誘導体の合成 その2
• Pyrimidine Derivatives. VIII. One-Step Synthesis of 3,4-Dyhydro-pyrimido[6,1-c][1,4]oxazine Derivatives by Reactions of 5-Bromo-1-(2-bromoethyl)-6-bromomethyl-2,4-(1H, 3H)-pyrimidinedione with Sodium Alkoxides and 2-Nitropropane
• Correlations between Carbon-13 Nuclear Magnetic Resonance Chemical Shifts and Reactivities of Siloxybutadienes and Siloxyazabutadienes in the Diels-Alder Reaction with Dimethyl Acetylenedicarboxylate
• Stable Sulfur Ylides. X. : Reactions of Carbonyl-Stabilized Sulfonium Ylides with Acetyl Chloride
• Stable Sulfur Ylides. XI. : Facile Preparation of Silyloxydienes from Stable Sulfur Ylides
• Ring Clreavage Reaction of 1,3-Oxazine-2,4(3H)-dione Derivatives with Amines
• Primidine Derivatives. V. : Synthesis and Nucleophilic Reactions of 5-Bromo-6-bromomethyl-1-(2-bromoethyl and 2-bromopropyl)-3-methyl-2,4(1H, 3H)-pyrimidinedione
• Synthesis and Reactions of 2,3-Dihydrothiazolo[3,2-α]pyrimidine Derivatives(Organic,Chemical)
• Studies on the Synthesis of Pyridazine Derivatives. XI. Reaction of 3,6-Dialkoxypyridazine 1-Oxide with Alkylhalides, Haloketones and Haloacid Esters, and Decomposition of Reaction Products
• Synthesis of 5,5'-Mehylenebispyrimidine Derivatives and 3,4-Dithia[6.1](1.5)pyrimidinophane
• 安定イオウイリドの研究(第9報)Dimethylsulfonium AcetylcarbamoylmethylideとIsoquinoline 2-Oxideとの反応
• Stable Sulfur Ylides. VIII. The Reactions of 1,3-Oxazin-4-one Derivatives
• Stable Sulfur Ylides. VII. The Reaction of Dimethylsulfonium Acetylcarbamoylmethylide with Quinoline 1-Oxide
• Triphenylphosphonium Allylide類と塩基との反応
• 安定イオウイリドの研究(第6報)Dimethylsulfonium AcetylmethoxycarbonylmethylideおよびDimethylsulfonium DiacetylmethylideとIsoquinoline 2-Oxideとの反応
• Stable Sulfur Ylides. V. Syntheses of α-Acylfuran Derivatives by Thermal and Photochemical Reaction of Allylides
• Stable Sulfur Ylides. IV. Reaction of Dimethylsulfonium Acetylmethoxycarbonylmethylide and Dimethylsulfonium Diacetylmethylide with Quinoline 1-Oxide
• Stable Sulfur Ylides. III. Reaction of Stable Sulfonium Allylides and Oxosulfonium Allylides with Alkoxides
• Stable Sulfur Ylides. II. : Syntheses of Stable Sulfonium Allylides and Oxosulfonium Allylides
• Pyrimidine Derivatives. XI. Facile Carbon-Carbon Bond-Cleavage Reaction of 6-Bromomethylpyrimidinediones and (2,4-Dioxo-1,2,3,4-tetrahydropyrimidin-6-yl)methyl Nitrate via 6-Formyl Derivatives
• Synthesis of Alkaloids, (±)-Xylopinine and (±)-Tetrahydropalmatine, by a Photo-Induced Rearrangement of Spirobenzylisoquinolines in the Presence of Vitamin C

もっと見る 閉じる

スポンサーリンク