1,3-Dialkynyl- and 1,3-Dialkenylisobenzofurans: New π-Extended Congeners Prepared by Double Nucleophilic Addition of Alkynyllithiums to o-Phthalaldehyde

Efficient synthetic route to 1,3-dialkynyl- and 1,3-dialkenylisobenzofurans, new π-extended congeners of isobenzofurans, was reported. A three-step protocol including double nucleophilic additions of alkynyllithiums to o-phthalaldehyde and selective oxidation enables us to prepare various functional...

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Bibliographic Details
Published in:Chemistry letters 2017-01, Vol.46 (1), p.25-28
Main Authors: Kudo, Ryoji, Kitamura, Kei, Hamura, Toshiyuki
Format: Article
Language:English
Subjects:
Congeners
Oxidation
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Summary:Efficient synthetic route to 1,3-dialkynyl- and 1,3-dialkenylisobenzofurans, new π-extended congeners of isobenzofurans, was reported. A three-step protocol including double nucleophilic additions of alkynyllithiums to o-phthalaldehyde and selective oxidation enables us to prepare various functionalized π-extended isobenzofurans. The photophysical properties of these π-extended isobenzofurans are also evaluated.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.160884