Tetrahedron Letters p. 4543 - 4546 (1985)
Update date:2022-08-11
Topics:
Banwell, Martin G.
Onrust, Rene
Swern-type oxidation of various 7-halogenobicyclo<4.1.0>heptane-2,3- or -3,4-diols affords the corresponding bicyclic diketones which undergo in situ ring expansion and loss of hydrogen halide to give α-tropolones in high yield.The quantitative conversion of the isolable 1,4-diketone 26 into the γ-tropolone acetate 27 has been achieved.
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