Tetrahedron p. 4677 - 4686 (1992)
Update date:2022-08-11
Topics:
Posner, Gary H.
Shulman-Roskes, Ellen M.
One flask, 3-component Michael-Michael-Dieckmann cyclizations are applied to 2+2+2 construction of spirobicyclic cyclohexanone β-keto esters 7 and 11 as pivotal intermediates for synthesis of naturally-occuring spiro<4.5>decane β-vetivone (1).Some unexpected difficulties were encountered and are discussed.A novel BF3-promoted unidirectional dehydration of tertiary alcohol silyl ether 15 exclusively into isopropylidene cyclopentane 16 is reported.
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Doi:10.1246/bcsj.67.728
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(2015)Doi:10.1016/S0031-9422(98)00737-7
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(2013)
