Iodine-Mediated Cascade Cyclization of Enediynes to Iodinated Benzo[a]carbazoles

被引:82
作者
Chen, Chin-Chau [1 ]
Yang, Shyh-Chyun [2 ]
Wu, Ming-Jung [1 ]
机构
[1] Natl Sun Yat Sen Univ, Dept Chem, Kaohsiung 80424, Taiwan
[2] Kaohsiung Med Univ, Sch Pharm, Kaohsiung, Taiwan
关键词
ACTIVE CARBAZOLE ALKALOIDS; TRANSITION-METAL-COMPLEXES; INTRAMOLECULAR CYCLIZATION; ELECTROPHILIC CYCLIZATION; ORGANIC-SYNTHESIS; 3-IODOINDOLES; MOLECULES; CHEMISTRY; ARYLATION; INDOLES;
D O I
10.1021/jo201795t
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Treatment of N,N-dimethyl 2-[2-(2-ethynylphenyl)ethynyl]anilines (1) with 1.2 equiv of iodine in CH2Cl2 gave benzo[a]carbazoles (2) in good yields. Mechanistic studies showed this reaction must go through the haloindole (3) followed by iodonium ion catalyzed atom-transfer cyclization reaction to give the benzo[a]carbazoles.
引用
收藏
页码:10269 / 10274
页数:6
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