An original one-pot Michael addition-ihDA/rDA sequence was achieved from 3-vinyl-1,2,4-triazine platforms used as unprecedented Michael acceptors. This sequence provides a novel access to functionalized [2,3]-fused pyridine derivatives via a unique enamine promoted intramolecular ihDA reaction of 1,2,4-triazine intermediates.

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http://dx.doi.org/10.1021/acs.orglett.5b01487DOI Listing

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