Search results for "dihydroanthracene"
showing 6 items of 6 documents
Conformational analysis of methyl-substituted 9,10-dihydroanthracenes
2005
The amount of the ring puckering in methyl-substituted 9,10- dihydroanthracene was theoretically determined through DFT calculations. Theoretical calculations allowed to obtain the geometrical structures and energetic data on the different considered isomers.
Crystal and molecular structure of 2,3,6,7-tetramethoxy-9-trichloromethyl-10-carboxymethyl-9,10-dihydroanthracene
1990
Cl3O6C21H21,Mr=475.75, orthorhombic,P212121,a=21.895(3),b=12.101(2), andc=8.237(2) A,V=2182.4(7) A3,Dx=1.45 g cm−3 forZ=4, λ(MoKα)=0.71069 Aμ=3.99 cm−1,F(000) 984, room temperature,R=0.035 for 1877 observed reflections. The molecule exhibits a folded conformation: the dihedral angle between the benzene rings is 28.3(1)°. The central ring is characterized by acis diaxal configuration of hydrogen atoms in the 9, 10 positions, confirming the 13-C NMR results.
Synthesis of oligomeric chains with 9,10‐dihydroanthracene units by carbanion alkylation
1988
Deprotonation of 9,10-dihydroanthracene (2) affords the monoanion 6 which is subjected to alkylation reactions with mono and bifunctional electrophiles. Crucial intermediates in syntheses using 6 are 9-(3-bromopropyl)-9,10-dihydroanthracene (7) and 1,3-bis(9,10-dihydro-9-anthryl)propane (9) since they provide access to linear oligomers in which 9,10-dihydroanthracene units are linked by trimethylene groups. The alkylation processes of these species can be extended to the structurally related polymer 4. The regio- and stereoselectivity of the alkylation reactions are investigated by 1H- and 13C-NMR spectroscopy. Oligomere Ketten mit 9,10-Dihydroanthracen-Einheiten durch Carbanionalkylierung …
CCDC 893727: Experimental Crystal Structure Determination
2013
Related Article: R.Garcia,M.A.Herranz,M.R.Torres,P.-A.Bouit,J.L.Delgado,J.Calbo,P.M.Viruela,E.Orti,N.Martin,N.Martin|2012|J.Org.Chem.|77|10707|doi:10.1021/jo302047m
CCDC 948414: Experimental Crystal Structure Determination
2015
Related Article: María Castellano, Wdeson P. Barros, Alvaro Acosta, Miguel Julve, Francesc Lloret, Yanling Li, Yves Journaux, Giovanni De Munno, Donatella Armentano, Rafael Ruiz-García, Joan Cano|2014|Chem.-Eur.J.|20|13965|doi:10.1002/chem.201403987
CCDC 919043: Experimental Crystal Structure Determination
2013
Related Article: María Castellano, Wdeson P. Barros, Alvaro Acosta, Miguel Julve, Francesc Lloret, Yanling Li, Yves Journaux, Giovanni De Munno, Donatella Armentano, Rafael Ruiz-García, Joan Cano|2014|Chem.-Eur.J.|20|13965|doi:10.1002/chem.201403987