- 作者: Wakabayashi, Hidetsugu ; Takano, Akifumi ; Shindo, Kimio et al.
- 作者服務機構: Dept. of Chemistry, Faculty of Science, Josai Univ., Sakado, Saitama, Japan
- 中文摘要: Oxidation of 1-ethyl-, 1-propylazulenes, and their 5- isopropyl derivatives with bromine gave 3-bromo-1,5- and 3-bromo-1,7-azulenequinones (Type A) together with 3-bromo- 1-hydroxy-5-isopropyl-1-alkylazulen-7-one and its isomeric products (Type B), while the same reaction of 1- methylazulenes afforded Type B products along with many unidentified products. On the other hand, 1-phenylazulene gave 3-phenyl-1,5- and 3-phenyl-1,7-azulenequinones (Type C) and Type B products in high yields. 1,2- Polymethyleneazulenes afforded a considerable amount of 3- bromo-2-(.omega.-formylalkyl)azulenequinones together with Type B products. Possible pathways for the extrusion of the alkyl substituent at C-1 are discussed.
- 英文摘要: --
- 中文關鍵字: Azulenequinone; Alkylazulene; Bromine Oxidation; Substituent Extrusion
- 英文關鍵字: 薁;烷基薁;溴氧化;取代擠壓