Tetrahedron p. 5481 - 5496 (1992)
Update date:2022-07-29
Topics:
Kasturi, Tirumalai R.
Pragnacharyulu, Palle V. P.
Reddy, Gouravaram M.
Jayaram, Srirangam K.
Singh, Sheo B.
Oxidation of spiroketones 3a-f with DDQ in dry benzene gave tropone derivatives 4a-f and DDHQ esters 5a-f (cis-cis isomer 6a-f, trans-trans isomer 7a-f). While the aryl substituted spirokeone 17a gave a 2:1 mixture of 19a and the corresponding trans-trans
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Doi:10.1016/j.tet.2012.12.061
(2013)Doi:10.1016/j.tet.2013.04.026
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(1992)
