Isocyclic Compounds
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ChemInform Abstract: Synthesis of Multi-Bridged Cyclophanes by Means of (2 + 2)Photocycloaddition. Stereocontrol of Cyclobutane-Linkage by Methoxyl Group.
First published: September 11, 1990
Abstract
The α,ω-bis(p-hydroxyphenyl)alkanes (I) are converted to the tetravinyl compounds (VII) in a five-step reaction sequence as outlined in the reaction scheme.
ChemInform Abstract
The α,ω-bis(p-hydroxyphenyl)alkanes (I) are converted to the tetravinyl compounds (VII) in a five-step reaction sequence as outlined in the reaction scheme. Irradiation of (VII) yields the threefold bridged cyclophanes (VIII) with fused cyclobutane rings in the two newly formed bridges.
