The concise synthesis and resolution of planar chiral [2.2]paracyclophane oxazolines by C–H activation
Sign Up to like & getrecommendations! Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra01075e
Abstract: Planar chiral [2.2]paracyclophanes are resolved through the direct C–H arylation of enantiopure oxazolines, providing a convenient route to ligands and chiral materials. Preliminary results show that hydrolysis followed by decarboxylative phosphorylation leads to enantiopure [2.2]paracyclophane… read more here.
Keywords: chiral paracyclophane; planar chiral; paracyclophane; synthesis resolution ... See more keywords
Lemniscular carbon nanohoops with contiguous conjugation from planar chiral [2.2]paracyclophane: influence of the regioselective synthesis on topological chirality
Sign Up to like & getrecommendations! Published in 2023 at "Chemical Science"
DOI: 10.1039/d2sc06825g
Abstract: We report herein the regioselective synthesis of all-carbon lemniscular nanohoops bis-po-CC and bis-pm-TC by the rational control of ring closures at the different positions of planar chiral tetrasubstituted [2.2]paracyclophane. Topological analyses reveal that bis-pm-TC is… read more here.
Keywords: carbon; paracyclophane; contiguous conjugation; regioselective synthesis ... See more keywords
[2.2.2]Paracyclophane as a receptor for the cesium cation in the gas phase
Sign Up to like & getrecommendations! Published in 2017 at "Molecular Physics"
DOI: 10.1080/00268976.2017.1334971
Abstract: ABSTRACT By using electrospray ionisation mass spectrometry, it was proven experimentally that the cesium cation (Cs+) forms with [2.2.2]paracyclophane (C24H24) the cationic complex [Cs(C24H24)]+. Further, applying quantum chemical calculations, the most probable structure of the… read more here.
Keywords: cation; paracyclophane; cation gas; receptor ... See more keywords
An experimental and computational study of calamitic and bimesogenic liquid crystals incorporating an optically active [2,2]-paracyclophane
Sign Up to like & getrecommendations! Published in 2018 at "Liquid Crystals"
DOI: 10.1080/02678292.2018.1453559
Abstract: ABSTRACT Two liquid-crystalline materials containing an optically active (R)-4-hydroxy-[2,2]-paracyclophane group were prepared, one in which the chiral group is a bulky terminal unit and one in which it forms part of a terphenyl-like mesogenic unit.… read more here.
Keywords: optically active; computational study; liquid crystals; paracyclophane ... See more keywords
A microwave-assisted and efficient reduction protocol for the synthesis of alkyl-substituted [2.2]-paracyclophanes
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Chemical Research"
DOI: 10.1177/17475198231164370
Abstract: [2.2]-Paracyclophane derivatives have been promising platforms for applications in biology and materials science. To access pure derivatives thereof, a safe and non-toxic synthetic method for 4-n-propyl-[2.2]-paracyclophane is developed via a microwave-assisted and NH2NH2/KOH reduction route.… read more here.
Keywords: microwave assisted; paracyclophane; synthesis; reduction ... See more keywords
Breaking paracyclophane: the unexpected formation of non-symmetric disubstituted nitro[2.2]metaparacyclophanes
Sign Up to like & getrecommendations! Published in 2021 at "Beilstein Journal of Organic Chemistry"
DOI: 10.3762/bjoc.17.109
Abstract: Substituted [2.2]metaparacyclophanes are amongst the least studied of the simple cyclophanes. This is undoubtedly the result of the lengthy syntheses of these compounds. We report the simple synthesis of a rare example of a non-symmetric… read more here.
Keywords: non symmetric; paracyclophane unexpected; formation non; paracyclophane ... See more keywords