نتایج جستجو برای: 1h indene 132h dione
تعداد نتایج: 34382 فیلتر نتایج به سال:
Organic bulk-heterojunction solar cells based on the newly developed nonfullerene electron acceptors have potential for very low-cost energy production. However, to enable large-scale production with common printing techniques, active layer thicknesses need be increased by up an order of magnitude, which is currently not possible without significant loss in performance. Herein, requirements mak...
Five new diketopiperazine derivatives, (3Z,6E)-1-N-methyl-3-benzylidene-6-(2S-methyl-3-hydroxypropylidene)piperazine-2,5-dione (1), (3Z,6E)-1-N-methyl-3-benzylidene-6-(2R-methyl-3-hydroxypropylidene)piperazine-2,5-dione (2), (3Z,6Z)-3- (4-hydroxybenzylidene)-6-isobutylidenepiperazine-2,5-dione (3), (3Z,6Z)-3-((1H-imidazol-5-yl)-methylene)-6-isobutylidenepiperazine-2,5-dione (4), and (3Z,6S)-3-b...
The title compound, C(10)H(11)NO(4), was formed from 4,1-benzoxazepine-2,5(1H,3H)-dione and ammonia gas. Intra-molecular hydrogen bonding is present between the amide N-H group and the carbonyl O atom of the ester group. The crystal structure features inter-molecular O-H⋯O hydrogen bonds.
A series of N-substituted thiazolidine-2,4-dione derivatives bearing potentially bioactive substituents were synthesized by microwave irradiation method. Structural elucidation was accomplished by 1H NMR, 13C NMR, IR, Mass and elemental analyses. The synthesized compounds were evaluated for antimicrobial activities. Among the compounds studied, compounds 4i and 4d showed potent antimicrobial ac...
Two new cyclotetrapeptides, sartoryglabramides A (5) and B (6), and a new analog of fellutanine A (8) were isolated, together with six known compounds including ergosta-4, 6, 8 (14), 22-tetraen-3-one, ergosterol 5, 8-endoperoxide, helvolic acid, aszonalenin (1), (3R)-3-(1H-indol-3-ylmethyl)-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione (2), takakiamide (3), (11aR)-2,3-dihydro-1H-pyrrolo[2,1-c][1,...
Six new compounds, trans-3-isobutyl-4-[4-(3-methyl-2-butenyloxy)phenyl]pyrrolidine-2,5-dione (1), trans-1-hydroxy-3-(4-hydroxyphenyl)-4-isobutylpyrrolidine-2,5-dione (2), cis-3-(4-hydroxyphenyl)-4-isobutyldihydrofuran-2,5-dione (3), 3-(4-hydroxyphenyl)-4-isobutyl-1H-pyrrole-2,5-dione (4), 3-(4-hydroxyphenyl)-4-isobutylfuran-2,5-dione (5), and dimethyl 2-(4-hydroxyphenyl)-3-isobutylmaleate (6), ...
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