Structural studies of seven homoisoflavonoids, six thiohomoisoflavonoids, and four structurally related compounds
作者： Arto Valkonen , Katri Laihia , Erkki Kolehmainen , Reijo Kauppinen , Pál Perjési
DOI: 10.1007/S11224-011-9860-6
关键词: Stereochemistry 、 Crystal 、 Chemical shift 、 Intermolecular force 、 Chemistry 、 Crystal structure 、 Carbon-13 NMR
摘要: 1H and 13C NMR chemical shifts have been determined assigned based on PFG 1H, HMQC, HMBC experiments for 3-(4′-X-benzyl)-4-chromenones (Ia, X = CN Ib, NO2), 3-(4′-X-benzyl)-4-thiochromenones (IIa, Cl IIb, Br), (E)-3-(4′-X-benzylidene)-4-chromanones (IIIa–IIIe, OCH3, CH3, Cl, N(CH3)2, (Z)-3-(4′-X-benzylidene)4-thiochromanones (IVa–IVd, Br, F, OCH3), 2-benzyl-1,2,3,4-tetrahydro-1-naphthol (V), 2-benzyl- (E)-2-benzylidene-1-tetralones (VI VII), (E)-2-benzylidene-1-benzosuberol (VIII). The crystal structures the following seven compounds: derivatives of 4-chromanones (IIIa–IIId), 1-tetrahydronaphtol 1-tetralones VII). molecular features intermolecular interactions in state discussed.
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