Results 31 to 40 of about 29,301 (244)
A Most Unusual Zeolite Templating: Cage to Cage Connection of One Guest Molecule [PDF]
, 2010 An unusual case of a diquaternary ammonium dication, with large bulky end groups built from the tropane moiety and connected by a C4 methylene chain, is found to reside in zeolite SSZ-35 (STF).
Burton, Allen W. +6 more
core +1 more source
Ethyl 6-methyl-2-p-tolylpyrazolo[1,5-a]pyridine-5-carboxylate
Acta Crystallographica Section E, 2009 In the title molecule, C18H18N2O2, the bicyclic ring system and the benzene ring form a dihedral angle of 13.45 (3)°. In the crystal structure, weak intermolecular C—H...O hydrogen bonds link molecules into chains propagated ...
Jiong Jia +3 more
doaj +1 more source
5-Amino-7-(4-bromophenyl)indane-4,6-dicarbonitrile
Acta Crystallographica Section E, 2009 In the title molecule, C17H12BrN3, the mean planes of the bicyclic system and the attached aromatic ring form a dihedral angle of 63.12 (7)°.
Cunlan Zhang
doaj +1 more source
An amphiphilic pseudo[1]catenane: neutral guest-induced clouding point change
Beilstein Journal of Organic Chemistry, 2018 The hydrophobic/hydrophilic ratio in a molecule largely affects its assembled properties in aqueous media. In this study, we synthesized a new bicyclic compound which could dynamically change its hydrophobic/hydrophilic ratio by chemical stimulus.
Tomoki Ogoshi +2 more
doaj +1 more source
3-O-Benzhydryl-2,5-dideoxy-2,5-imino-2-C-methyl-l-lyxono-1,4-lactone
Acta Crystallographica Section E, 2008 The title bicyclic lactone, C19H19NO3, is an intermediate in the synthesis of chiral α-methylprolines and branched C-methyl pyrrolidines; the absolute configuration was determined by the use of d-erythronolactone as the starting material.
David J. Watkin +3 more
doaj +1 more source
IUCrData, 2016 The conformation of the title molecule, C19H19N3O4S·C2H6OS, which crystallized as a DMSO solvate, is partially determined by an intramolecular N—H...O hydrogen bond, forming an S(6) loop. The thienopyridine bicyclic system is almost planar, with an r.m.s.
Etify A. Bakhite +5 more
doaj +1 more source
Acta Crystallographica Section E, 2012 In the title compound, C24H24O14, the stereochemistry at the cyclobutane ring is cis-anti-cis and the –COOMe groups in the bicyclic rings are syn to each other. The molecule lies on a twofold rotation axis.
Alan J. Lough, Kelsey Jack, William Tam
doaj +1 more source
Synthesis, x-ray structure and anion binding properties of a cryptand-like hybrid calixpyrrole [PDF]
, 2010 The novel cryptand in/out-3, containing two tripyrrolemethane units briged by three 1,3- diisopropylidenbenzene arms was readily synthesized by a convergent three-step synthesis. It binds fluoride by inclusion with excellent selectivity with respect to a
Cafeo, Grazia +6 more
core +1 more source
Angewandte Chemie, EarlyView.A radical cascade process involving the activation of two aliphatic C–H bonds in a series of five elementary steps converts readily available terminal alkynes into functionalized cyclopentylmethyl arylsulfones. The methodology delivers flexible synthetic intermediates and was applied to the preparation of diquinanes and triquinanes possessing a rare ...
Lise Benoist +4 more
wiley +2 more sources
cis-3,3-Dimethyl-3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c]furan-1,6-dione
Acta Crystallographica Section E, 2008 The bicyclic molecule of the title compound, C9H12O3, contains two five-membered rings with different functional groups, viz. a ketone and an ester. Both rings assume an envelope conformation.
Wayne H. Pearson +2 more
doaj +1 more source