title: Synthesis of benzo[a]carbazole derivatives from 3-ethylindoles by exploiting the dual character of benzoquinone as an oxidizing agent and dienophile.
abstract: The dual character of benzoquinone is exploited for the synthesis of benzo[a]carbazole derivatives starting from 3-ethylindole derivatives. A diene is generated in situ from the 3-ethylindole derivative with the help of benzoquinone, where it acts as an oxidizing agent. Later it serves as a dienophile and participates in a Diels-Alder reaction with the diene to afford benzo[a]carbazole derivatives.
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Chun-Wei
authors.initials: CW
authors.lastname: Kuo
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Ashok
authors.initials: A
authors.lastname: Konala
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Lyu
authors.initials: L
authors.lastname: Lin
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Ting-Ta
authors.initials: TT
authors.lastname: Chiang
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Chia-Yu
authors.initials: CY
authors.lastname: Huang
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Tang-Hao
authors.initials: TH
authors.lastname: Yang
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Veerababurao
authors.initials: V
authors.lastname: Kavala
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, Republic of China. cheyaocf@ntnu.edu.tw.
authors.forename: Ching-Fa
authors.initials: CF
authors.lastname: Yao