Synthesis of dispirocyclohexadiene bisoxindole from Morita-Baylis-Hillman carbonate of isatin
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Title
Synthesis of dispirocyclohexadiene bisoxindole from Morita-Baylis-Hillman carbonate of isatin
Author(s)
B K Min; Sangku Lee; H J Roh; J Y Ryu; J Lee; J N Kim
Bibliographic Citation
Tetrahedron Letters, vol. 58, no. 33, pp. 3251-3255
Publication Year
2017
Abstract
6π-Electrocyclization of conjugated trienes derived in-situ from the Morita-Baylis-Hillman carbonates of N-methylisatins afforded dispirocyclohexadiene bisoxindoles in good yields. Two stereoisomers (cis and trans) were formed in almost equal amounts.