Hinkle RJ, Lewis SE. Atom economical, one-pot, three-reaction cascade to novel tricyclic 2,4-dihydro-1H-benzo[f]isochromenes.
Org Lett 2013;
15:4070-3. [PMID:
23901903 PMCID:
PMC4447333 DOI:
10.1021/ol401600j]
[Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Reaction of 6-methyl-1-phenylhept-3-yne-2,6-diol with various aldehydes under Lewis acid conditions provides an atom economical, two-component cascade reaction sequence to novel 2,4-dihydro-1H-benzo[f]isochromene compounds. Aliphatic aldehydes as well as electron-deficient and -rich aromatic aldehydes can be used.
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