24097-56-1Relevant academic research and scientific papers
The preparation of substituted 3,4-dihydro-1H-2-benzopyran-1- ones from the dianions of ortho-toluic acids
Hildebran,Cordray,Chan,Beam
, p. 779 - 788 (1994)
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).
