Copper acetate monohydrate: a cheap but efficient oxidant for synthesizing multi-substituted indolizines from pyridinium ylides and electron deficient alkenes
作者:Huayou Hu、Junjun Feng、Yulan Zhu、Ning Gu、Yuhe Kan
DOI:10.1039/c2ra21213g
日期:——
We report a highly practical one-pot method for synthesizing multi-substituted indolizines from α-halide carbonyl compounds, pyridines and electron deficient alkenes in the presence of copper acetate monohydrate and sodium acetate in DMF. A variety of function groups are tolerable in standard reaction conditions, including aldehyde. 36 examples were presented. The yield of indolizine was from moderate to high. Furthermore, multi-substituted indolizines can be prepared at gram scale by this method.
Greener synthesis of indolizine analogues using water as a base and solvent: study for larvicidal activity against<i>Anopheles arabiensis</i>
作者:Chandrashekharappa Sandeep、Katharigatta N. Venugopala、Raquel M. Gleiser、Abeen Chetram、Basavaraj Padmashali、Rashmi S. Kulkarni、Rashmi Venugopala、Bharti Odhav
DOI:10.1111/cbdd.12823
日期:2016.12
Greener synthesis of a series of novel indolizine analogues have been achieved by the cyclization of aromatic cycloimmoniumylides with electron deficient alkynes in presence of water as the base and solvent at 80 degrees C. Yield of the title compounds was good and reactions performed were eco-friendly. The structures of these newly synthesized compounds have been confirmed by spectroscopic techniques
Anti-tubercular activity and molecular docking studies of indolizine derivatives targeting mycobacterial InhA enzyme
作者:Katharigatta N. Venugopala、Sandeep Chandrashekharappa、Pran Kishore Deb、Christophe Tratrat、Melendhran Pillay、Deepak Chopra、Nizar A. Al-Shar’i、Wafa Hourani、Lina A. Dahabiyeh、Pobitra Borah、Rahul D. Nagdeve、Susanta K. Nayak、Basavaraj Padmashali、Mohamed A. Morsy、Bandar E. Aldhubiab、Mahesh Attimarad、Anroop B. Nair、Nagaraja Sreeharsha、Michelyne Haroun、Sheena Shashikanth、Viresh Mohanlall、Raghuprasad Mailavaram
DOI:10.1080/14756366.2021.1919889
日期:2021.1.1
= 16–64 µg/mL). In silico docking study revealed the enoyl-acylcarrierproteinreductase (InhA) and anthranilate phosphoribosyltransferase as potential molecular targets for the indolizines. The X-ray diffraction analysis of the compound 4b was also carried out. Further, a safety study (in silico and in vitro) demonstrated no toxicity for these compounds. Thus, the indolizines warrant further development
Metal/catalyst/alkyne/
<scp>alkene‐free one‐pot</scp>
synthesis of indolizines from 2‐(pyridin‐2‐yl)acetate,
<scp>DMF‐DMA</scp>
and
<scp>α‐halomethylenes</scp>
作者:Hitesh B. Jalani、Doha Lee、Ju‐Young Lee、Jin‐Hyun Jeong
DOI:10.1002/jhet.4632
日期:——
and robust one-pot synthesis of 1,3-disubstitued-indolizines from 2-(pyridin-2-yl)acetate, DMF-DMA and α-halomethylenes without using metal/catalyst/alkyne/alkene. This protocol provides variety of indolizine analogs via in-situ formed 3-(dimethylamino)-2-(pyridin-2-yl)acrylate intermediate, undergoes N-alkylation followed by Michaeladdition/cyclization. The gram scale synthesis of indolizine developed
Experimental and theoretical insights on the photophysical properties of ester-substituted indolizines
作者:Marcelo M. Vieira、Bianca T. Dalberto、Nathalia B. Padilha、Henrique C.S. Junior、Fabiano S. Rodembusch、Paulo H. Schneider
DOI:10.1016/j.molstruc.2023.136726
日期:2024.1
When benzene was added to the ethanolic solution, the indolizines usually exhibited fluorescence quenching, with a linear relationship between the amount of benzene and the emission intensity. Theoretical calculations were also employed to gain a deeper understanding of the solute-solvent interactions.