Unexpected Formation of Quinolone Derivatives in Reissert Indole Synthesis

Synlett ◽  
2000 ◽  
Vol 2000 (08) ◽  
pp. 1196-1198 ◽  
Keyword(s):  
Unexpected Formation ◽  
Indole Synthesis ◽  
Quinolone Derivatives

ChemInform Abstract: Synthetic Studies on Indoles and Related Compounds. Part 49. Unexpected Formation of Quinolone Derivatives in Reissert Indole Synthesis.

ChemInform ◽  
2000 ◽  
Vol 31 (45) ◽  
pp. no-no
Author(s):  
Hideharu Suzuki ◽  
Hiroshi Gyoutoku ◽  
Hiroe Yokoo ◽  
Mika Shinba ◽  
Yuka Sato ◽  
...  
Keyword(s):  
Unexpected Formation ◽  
Synthetic Studies ◽  
Indole Synthesis ◽  
Related Compounds ◽  
Quinolone Derivatives

Propargylamine (secondary) as a building block in indole synthesis involving ultrasound assisted Pd/Cu-catalyzed coupling-cyclization method: Unexpected formation of (pyrazole)imine derivatives

2018 ◽  
Vol 59 (52) ◽  
pp. 4587-4592 ◽  
Author(s):  
Gangireddy Sujeevan Reddy ◽  
Suresh Babu Nallapati ◽  
P.S.V.K. Sri Saranya ◽  
B. Sridhar ◽  
Varadaraj Bhat Giliyaru ◽  
...  
Keyword(s):  
Building Block ◽  
Unexpected Formation ◽  
Ultrasound Assisted ◽  
Indole Synthesis

Nenitzescu Indole Synthesis: 1929-2019 Unexpected Formation of a Pyrrole-Azepine Hybrid in the Nenitzescu Indole Synthesis: A Reinvestigation

2020 ◽  
Vol 71 (5) ◽  
pp. 51-57
Author(s):  
Beatrice Cristina Ivan ◽  
Mino Rodolfo Caira ◽  
Florea Dumitrascu
Keyword(s):  
Double Bond ◽  
Unexpected Formation ◽  
X Ray ◽  
Indole Synthesis

The condensation of 1,4-benzoquinones with enamines reported ninety years ago is a name reaction known as the Nenitzescu indole synthesis which has proved to be a very useful method for obtaining both 5-hydroxyindoles and nonindole derivatives. An unexpected compound containing two condensed azepine rings was isolated in 1988 from the reaction between 1,4-benzoquinone and ethyl 3-aminocinnamate performed in 1-butanol. The reinvestigation of the proposed bisazepine structure by X-ray analysis revealed instead a pyrrole-azepine hybrid having the two heterocycles rings connected by a double bond.

Review: Studies on the Synthesis of Quinolone Derivatives with Their Antibacterial Activity (Part 1)

2020 ◽  
Vol 24 (8) ◽  
pp. 817-854
Author(s):  
Anil Kumar ◽  
Nishtha Saxena ◽  
Arti Mehrotra ◽  
Nivedita Srivastava
Keyword(s):  
Antibacterial Activity ◽  
Antibacterial Properties ◽  
Structure Activity Relationship ◽  
New Drugs ◽  
Activity Relationship ◽  
Structure Activity ◽  
Medicinal Properties ◽  
Synthetic Routes ◽  
Quinolone Derivatives

Quinolone derivatives have attracted considerable attention due to their medicinal properties. This review covers many synthetic routes of quinolones preparation with their antibacterial properties. Detailed study with structure-activity relationship among quinolone derivatives will be helpful in designing new drugs in this field.

Modular Counter-Fischer–Indole Synthesis through Radical-Enolate Coupling

2021 ◽  
Vol 23 (3) ◽  
pp. 1096-1102
Author(s):  
Hyunho Chung ◽  
Jeongyun Kim ◽  
Gisela A. González-Montiel ◽  
Paul Ha-Yeon Cheong ◽  
Hong Geun Lee
Keyword(s):  
Fischer Indole Synthesis ◽  
Indole Synthesis

Ultrathin Amorphous/Crystalline Heterophase Rh and Rh Alloy Nanosheets as Tandem Catalysts for Direct Indole Synthesis

2021 ◽  
pp. 2006711
Author(s):  
Jingjie Ge ◽  
Peiqun Yin ◽  
Ye Chen ◽  
Hongfei Cheng ◽  
Jiawei Liu ◽  
...  
Keyword(s):  
Indole Synthesis

scholarly journals Effect of strain-induced anisotropy on magnetization dynamics in Y3Fe5O12 films recrystallized on a lattice-mismatched substrate

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Adam Krysztofik ◽  
Sevgi Özoğlu ◽  
Robert D. McMichael ◽  
Emerson Coy
Keyword(s):  
Dispersion Model ◽  
Perpendicular Magnetic Anisotropy ◽  
Negative Slope ◽  
Recrystallization Process ◽  
Induced Anisotropy ◽  
Magnetization Dynamics ◽  
Unexpected Formation ◽  
Lattice Matched ◽  
Ferromagnetic Resonance Linewidth ◽  
Lattice Mismatched Substrate

AbstractWe report on the correlation of structural and magnetic properties of Y3Fe5O12 (YIG) films deposited on Y3Al5O12 substrates using pulsed laser deposition. The recrystallization process leads to an unexpected formation of interfacial tensile strain and consequently strain-induced anisotropy contributing to the perpendicular magnetic anisotropy. The ferromagnetic resonance linewidth of YIG is significantly increased in comparison to a film on a lattice-matched Gd3Ga5O12 substrate. Notably, the linewidth dependency on frequency has a negative slope. The linewidth behavior is explained with the proposed anisotropy dispersion model.

Unexpected formation of root‐like structures subsequent to the avulsion of immature permanent teeth: Case report

2021 ◽  
Author(s):  
Giselle Emilãine da Silva Reis ◽  
Juliana Feltrin de Souza ◽  
Denis Emílio Nascimento Santos ◽  
José Vitor Nogara Borges de Menezes ◽  
Fabian Calixto Fraiz ◽  
...  
Keyword(s):  
Case Report ◽  
Permanent Teeth ◽  
Unexpected Formation
Sign in / Sign up

Export Citation Format

Share Document