Electroreductive Intermolecular Coupling of 4-Quinolones with Benzophenones: Synthesis of 2-Substituted 4-Quinolones
نویسندگان
چکیده
منابع مشابه
Synthesis of phenanthridones using Diels-Alder reactions of 4-substituted 2(1H)-quinolones acting as dienophiles.
Diels-Alder reactions of 2(1H)-quinolones having an electron-withdrawing group at the 4-position with 1,3-butadiene derivatives were carried out to give the phenanthridones richly functionalized under the conditions of atmospheric and high pressure. Furthermore, the reactivities of 4-substituted 2(1H)-quinolones acting as a dienophile were examined using MO calculation.
متن کاملElimination of plasmids by new 4-quinolones.
Nalidixic acid and six of the new 4-quinolones eliminated F'lac and various native R plasmids from Escherichia coli at one half or one quarter the MIC. Four of eight plasmids tested were cured by all derivatives, with frequencies from 10 to 98%. Quinolones did not eliminate all plasmids that were cured by novobiocin, and vice versa.
متن کامل1,2-substituted 4-(1H)-quinolones: synthesis, antimalarial and antitrypanosomal activities in vitro.
A diverse array of 4-(1H)-quinolone derivatives bearing substituents at positions 1 and 2 were synthesized and evaluated for antiprotozoal activities against Plasmodium falciparum and Trypanosoma brucei rhodesiense, and cytotoxicity against L-6 cells in vitro. Furthermore, selectivity indices were also determined for both parasites. All compounds tested showed antimalarial activity at low micro...
متن کاملFluorinated 4-quinolones induce hyperproduction of interleukin 2.
The fluorinated 4-quinolones are a "new" group of antibiotics with a broad antibacterial spectrum. They are already widely used in clinical practice. Previous studies have shown that these drugs increase the uptake of [3H]thymidine into DNA of mitogen-stimulated lymphocytes but inhibit cell growth and immunoglobulin secretion. This study shows that the 4-quinolones strongly (up to 100 times) in...
متن کاملBenzoylierung an 3-8ubstituierten 4-Hydroxy-2-chinolonen und 4-Hydroxycumarinen Benzoylation of 3-Substituted 4-Hydroxy-2-quinolones and 4-Hydroxycoumarines
Die Acetylierung von 4-Hydroxycumarinen und verwandten Verbindungen, die schon mehrmals Gegenstand eingehender Untersuchungen war, zeigt, daß bei kinetisch kontrollierten Bedingungen das 4-Acetoxyderivat entsteht, während als thermodynamisch stabileres Produkt die 3-Acetylverbindung gebildet wird [1, 2], Analoge Ergebnisse werden auch bei der Acylierung mit anderen aliphatischen Carbonsäuren ge...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACS Omega
سال: 2019
ISSN: 2470-1343,2470-1343
DOI: 10.1021/acsomega.9b03342