The preparation of substituted 3,4-dihydro-1H-2-benzopyran-1- ones from the dianions of ortho-toluic acids

Article abstract of DOI:10.1080/00397919408011300

The dianions of ortho-toluic and α-phenyl-ortho-toluic acids were prepared with lithium diisopropylamide (LDA), condensed with certain aldehydes or ketones, and the resulting intermediates were acid-cyclized to substituted 3,4-dihydro-1H-2-benzopyran-1-ones (dihydroisocoumarins).

Full text of DOI:10.1080/00397919408011300

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Synthetic Communications: An
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Organic Chemistry
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The Preparation of
Substituted 3,4-Dihydro-1H-2-
benzopyran-1-ones from the
Dianions of Ortho-Toluic Acids
Karen C. Hildebran a , Tracy L. Cordray a , Kam W.
Chan a & Charles F. Beam a
a Department of Chemistry , College of Charleston ,
Charleston, South Carolina, 29424
Published online: 16 Feb 2007.
To cite this article: Karen C. Hildebran , Tracy L. Cordray , Kam W. Chan & Charles
F. Beam (1994) The Preparation of Substituted 3,4-Dihydro-1H-2-benzopyran-1-ones
from the Dianions of Ortho-Toluic Acids, Synthetic Communications: An International
Journal for Rapid Communication of Synthetic Organic Chemistry, 24:6, 779-788, DOI:
10.1080/00397919408011300
To link to this article: http://dx.doi.org/10.1080/00397919408011300
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