A new general regiocontrolled synthesis of highly substituted and condensed indoles via heteroaromatic annelation
- Suresh, J. R.
- Patra, Pranab K.
- Ila, H.
- Junjappa, H.
DOIAbstract
A new general method for the synthesis of substituted and condensed indoles has been developed via heteroaromatic annelation involving base induced conjugate addition-elimination of 1-methylpyrrole-2-acetonitrile to various α-oxoketene acetals followed by cyclization of the resulting adducts in the presence of TsOH in refluxing benzene
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