An efficient method for synthesis of symmetrical diketones via reaction of .alpha.-amino-.alpha.-arylacetonitriles (masked acyl anion equivalents) with alkyl dibromides
Quantum chemical study of the electronic structure and reactivity of complexes of 4-oxo-4-(2-thienyl)- and 4-(5-methyl-2-thienyl)-4-oxobutyryl chlorides with aluminum chloride
作者:L. I. Belen’kii、V. I. Smirnov
DOI:10.1007/s11172-013-0085-2
日期:2013.3
The geometry and electronic structures of complexes of 4-oxo-4-(2-thienyl)- and 4-oxo-4-(5-methyl-2-thienyl)butyryl chlorides with aluminum chloride, as well as the corresponding carbocations, were studied in terms of the density functional theory (DFT) using the B3LIP/6-311+G(2d,p) method and the semiempirical PM6 method. An analysis of the relative energies of the complexes and cations made it possible
Isomer-controlled [70]fullerene bis-adducts can achieve high performance as electron-acceptors in organic photovoltaics (OPVs) because of their stronger absorption intensities than [60]fullerene derivatives, higher LUMO energy levels than mono-adducts, and less structural and energetic disorder than random isomer mixtures. Especially, attractive are cis-1 isomers that have the closest proximity of
Symmetrical and unsymmetrical 2,6-disubstituted dihydropyridines were prepared in high yields under mild conditions using the Suzuki and Stille Pd-catalyzed coupling reactions of imide-derived bisvinyl phosphates with a range of aryl, heteroaryl, and alkenyl moieties. The alkylation reaction at C-4 easily afforded original tri- and tetrasubstituted dihydropyridines. Hydrolysis of the latter under acidic condition provided efficiently either open-chain 1,5-diketones or di- or trisubstituted pyridines.
TAKAHASHI, KAZUMASA;MATSUZAKI, MASAHIRO;OGURA, KATSUYUKI;IIDA, HIROTADA, J. ORG. CHEM., 1983, 48, N 11, 1909-1912