共 50 条
Synthesis of Cyclo[b]fused Carbazoles via SnCl4-Mediated Domino Reaction of 2-Indolylmethylpivalates with Arenes and Heteroarenes
被引:12
|作者:
Saravanan, Velu
[1
]
Mageshwaran, Thiyagarajan
[1
]
Mohanakrishnan, Arasambattu K.
[1
]
机构:
[1] Univ Madras, Sch Chem, Dept Organ Chem, Guindy Campus, Madras 600025, Tamil Nadu, India
关键词:
TRANSITION-METAL-COMPLEXES;
ORGANIC-SYNTHESIS;
BIOLOGICAL EVALUATION;
DERIVATIVES;
ACID;
ANTITUMOR;
CYCLOADDITION;
BENZYLATION;
INDOLES;
ANALOGS;
D O I:
10.1021/acs.joc.6b01646
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A straightforward synthesis of aryl and heteroaryl-annulated cyclo[b]carbazoles has been developed via SnCl4-mediated one-pot arylation, cyclization and aromatization reaction sequence from 3-acetyl/aroyl-2-pivaloyloxymethylindoles. The starting material is easily accessible from commercially available 2-methylindole via Friedel Crafts acylation, bromination and pivaloylation. Remarkably, electron withdrawing/donating aroyl units including heterocyclic systems are well tolerated in the present domino reaction protocol. Furthermore, this methodology could be extended to the synthesis of dibenzofurocarbazole via bis-annulation of 2,5-bis(2-pivaloyloxymethyl)pyrrole.
引用
收藏
页码:8633 / 8646
页数:14
相关论文