Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5223455 | Tetrahedron | 2010 | 6 Pages |
Abstract
DABCO-mediated Morita–Baylis–Hillman reactions of several 1-substituted-indole-2-carboxaldehydes are disclosed. It was discovered that carboethoxy or tert-butoxycarbonyl groups installed at N-1 undergo cleavage under the reaction conditions to afford 2-substituted indoles. Utility of the N-substituted adducts for preparing a variety of annulated indoles has been exemplified.
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