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Synthesis of 2,3-disubstituted benzo[b]selenophenes via electrophilic cyclization.


ABSTRACT: 2,3-Disubstituted benzo[b]selenophenes have been prepared by the electrophilic cyclization of various 1-(1-alkynyl)-2-(methylseleno)arenes by Br2, NBS, I2, ICl, PhSeCl, PhSeBr, and Hg(OAc)2. This method tolerates a wide variety of functional groups, including alcohol, ester, nitrile, nitro, and silyl groups, and proceeds under exceptionally mild reaction conditions.

PROVIDER: S-EPMC2527062 | BioStudies |

REPOSITORIES: biostudies

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