Completely o-Phenylene Bridged N4-Cyclophane: A Missing Link in the Phenylene Bridge N4-Cyclophane Family.
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DOI: 10.1021/acs.orglett.3c01326
Abstract: Unprecedented types of metal-free complete o-phenylene bridged N4-cyclophanes (M1 and M2) have been synthesized via sequential palladium-catalyzed Buchwald-Hartwig N-arylation reactions. These cyclophanes may be considered as aromatic analogues of aliphatic group-spaced N4-macrocycles. These have been… read more here.
Keywords: cyclophane missing; completely phenylene; phenylene bridged; cyclophane ... See more keywords
Highly Strained para-Phenylene-Bridged Macrocycles from Unstrained 1,4-Diketo Macrocycles
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DOI: 10.1055/s-0036-1589081
Abstract: The conversion of macrocyclic 1,4-diketones to highly strained para-phenylene rings has recently been reported by our laboratory. This synthetic strategy represents a non-cross-coupling-based approach to arene-bridged macrocycles, and an alternative to palladium- and nickel-mediated processes.… read more here.
Keywords: highly strained; phenylene bridged; strained para; para phenylene ... See more keywords