lignans has been researched along with cyclopropane* in 1 studies
1 other study(ies) available for lignans and cyclopropane
Article | Year |
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Selective Lewis acid catalyzed transformation (gamma-butyrolactone versus cyclopropane) of 2-methoxy-4-benzyltetrahydrofuran derivatives. Efficient synthesis of lignan lactones.
[reaction: see text]. A short synthesis of lactone lignans exploiting a three-component coupling strategy is presented using a new Lewis acid catalyzed ring-opening/cyclization reaction of 2-methoxytetrahydrofuran derivatives 4 leading to gamma-butyrolactones as a key step. By simply changing the reaction conditions, it was possible, from the same substrates 4, to obtain selectively cyclopropane derivatives. Topics: 4-Butyrolactone; Catalysis; Cyclization; Cyclopropanes; Furans; Lactones; Lignans; Molecular Structure; Stereoisomerism | 2005 |