Three component tandem reactions involving protected 2-amino indoles, disubstituted propargyl alcohols, and I2/ICl: iodo-reactant controlled synthesis of dihydro-α-carbolines and α-carbolines via iodo-cyclization/iodo-cycloelimination

被引:36
|
作者
Sharma, Sudhir K. [1 ]
Gupta, Sahaj [1 ]
Saifuddin, Mohammad [1 ]
Mandadapu, Anil K. [1 ]
Agarwal, Piyush K. [1 ]
Gauniyal, Harsh M. [2 ]
Kundu, Bijoy [1 ]
机构
[1] CSIR, Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226001, Uttar Pradesh, India
[2] CSIR, Cent Drug Res Inst, Sophisticated Analyt Instrument Facil, Lucknow 226001, Uttar Pradesh, India
关键词
alpha-Carboline; Alkyne; Iodocycloelimination; Multicomponent reaction; Cyclization; MULTICOMPONENT REACTIONS; DNA;
D O I
10.1016/j.tetlet.2010.10.147
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Two simple, highly efficient three component tandem reactions for the synthesis of diversified N-a N-b dicarbamate-4,9-dihydro-3-iodo-alpha-carbolines and N-a-carbamate-3-iodo-alpha-carbolines have been described. The strategy involves one-pot condensation of bis-carbamate protected 2-amino indoles with disubstituted propargyl alcohols and I-2/ICl. The salient feature of the reaction involves iodocyclo-elimination of N-b-linked carbamate under mild condition in the final step. (C) 2010 Elsevier Ltd. All rights reserved.
引用
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页码:65 / 68
页数:4
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