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A New Synthesis of Tropolone

✍ Scribed by Drysdale, J. J.; Gilbert, W. W.; Sinclair, H. K.; Sharkey, W. H.


Book ID
120191247
Publisher
American Chemical Society
Year
1958
Tongue
English
Weight
518 KB
Volume
80
Category
Article
ISSN
0002-7863

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Pi= Swern-type oxidation of various 7-halogenobicyclo[4.l.O]heptane-2,3-or -3,4- 10 s affords the corresponding bicyclic diketones which undergo in situ ring expansion and loss of hydrogen halide to give a-tropolones in high yieme quantitative conversion of the isolable 1,4-diketone 26 into the y-tr