31541-36-3Relevant academic research and scientific papers
Structural, vibrational, electronic, NMR, NLO and reactivity analyses of (3Z)-3-(2-oxo-2-phenylethylidene)-1,3-dihydro-2H-indol-2-one (OPEDI) by ab initio HF and DFT calculations
Sridevi,Velraj
, p. 334 - 346 (2013)
This study represents the vibrational, electronic, NMR, NLO, reactivity and structural aspects of (3Z)-3-(2-oxo-2-phenylethylidene)-1,3-dihydro-2H-indol-2- one (OPEDI). A detailed interpretation of the FT-IR, FT-Raman, UV and NMR spectra were reported. Th
Asymmetric Synthesis of Spirooxindoles with Seven Stereocenters via Organocatalyzed One-pot Three-component Sequential Cascade Reactions
Zhao, Bo-Liang,Du, Da-Ming
, p. 3412 - 3419 (2019)
A bifunctional squaramide-catalyzed one-pot three-component Michael/Mannich-Michael/cyclization sequential cascade reaction for the construction of bispirooxindole-spirooxindoles was developed in good yields with excellent stereoselectivities (up to >20:1 dr, 99% ee). A series of original cinnamoyl-3-ylideneoxindoles have been applied to this sequential cascade strategy for the first time. This new strategy provides a process for the enantioselective construction of bispirooxindole-spirooxindoles with seven stereocenters, of which three are quaternary spiro-stereocenters. (Figure presented.).
Important properties of sulfur-bonded organoboron (III) complexes with biologically potent ligands
Singh,Biyala, Mukesh Kumar,Fahmi, Nighat
, p. 425 - 434 (2005)
Important properties of sulfur/oxygen and nitrogen bonded organoboron (III) complexes with biologically potent ligands viz., semicarbazone, thiosemicarbazone, and dithiocarbazate having the donor groups ONX and NS have been studied. The unimolar and bimol
Synthesis of Annulated Carbazoles from Indol-2,3-dione
Beccalli, Egle M.,Marchesini, Alessandro,Pilati, Tullio
, p. 4741 - 4758 (1993)
Reaction of ethyl chloroformate with 3-aroylmethylindol-2(3H)-ones 5 affords the ethyl 3--2-(ethoxycarbonyloxy)indole-1-carboxylates 6 from which the corresponding annulated carbazoles 10 are obtained via 6?-electro
Dynamic Kinetic Asymmetric Transformation of Racemic Diastereomers: Diastereo- and Enantioconvergent Michael–Henry Reactions to Afford Spirooxindoles Bearing Furan-Fused Rings
Sohail, Muhammad,Tanaka, Fujie
supporting information, p. 21256 - 21260 (2021/08/23)
Dynamic kinetic asymmetric transformation (DYKAT) reactions of racemic diastereomer mixtures that afford the products as essentially single diastereomers with high enantioselectivities are described. We demonstrated the DYKAT in the diastereo- and enantio
Lewis acid-promoted synthesis of highly substituted pyrrole-fused benzoxazinones and quinoxalinones
Selvendran, Suresh,Rajendran, Saravanakumar
, p. 437 - 445 (2020/10/22)
A synthesis of a series of novel fused tricyclic heterocyclic compounds has been achieved in one-pot reaction set up starting from (E)-3-(2-oxo-2-phenylethylidene)indolin-2-one and 1,4-benzoxazinone/quinoxalinone derivatives promoted by tin(IV) chloride.
Diastereoselective trans Cyclopropanation of 3-Alkylidene Oxindoles with in Situ Generated α-Diazo Carbonyls or α,β-Unsaturated Diazo Compounds
Pramanik, Sayan,Ray, Suman,Maity, Suvendu,Ghosh, Prasanta,Mukhopadhyay, Chhanda
, p. 2240 - 2252 (2021/03/18)
An efficient diastereoselective trans cyclopropanation of 3-alkylidene oxindoles with in situ generated α-diazo carbonyl compounds or α,β-unsaturated diazo compounds under metal-free conditions has been developed to synthesize 3-spirocyclopropyl-2-oxindol
Synthesis and evaluation of isatin derivatives as antifungal agents
Dawar, Monika,Kaur, Komalpreet,Rani, Ritu,Utreja, Divya
, p. 199 - 205 (2020/02/29)
Various types of isatin derivatives were synthesized by reacting isatin with different reagents viz substituted acetophenones, sodium nitrate, hydroxylamine hydrochloride and hydrazine hydrate. Characterization of the synthesized compounds was done by using various spectral techniques such as IR,1HNMR,13CNMR, elemental analysis and mass spectrometry. Synthesized compounds were further evaluated for their antifungal activity against Helminthosporium oryzae, Rhizoctonia solani and Fusarium moniliforme using poison food technique. 3-(2-Oxo-2-phenylethylidene) indolin-2-one showed significant mycelium inhibition against all tested rice fungi.
Ultrasound-assisted synthesis of 3-(1-(2-(1H-indol-3-yl)ethyl)-2-aryl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-3-yl)indolin-2-ones by novel core-shell bio-based nanocatalyst anchoring sulfonated L-histidine on magnetized silica (SO3H-L-Hi
Nikoofar, Kobra,Peyrovebaghi, Seyedeh S.
, p. 1303 - 1313 (2020/02/13)
An efficient synthesis of 3-(1-(2-(1H-indol-3-yl)ethyl)-2-aryl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-3-yl)indolin-2-ones is reported via a one-pot three-component reaction of 3-phenacylidenoxindoles, tryptamine, and dimedone under ultrasound irra
Phosphine-Catalyzed Interrupted Morita–Baylis–Hillman Reaction and Switchable Domino Reactions of α-Substituted Activated Olefins with Formaldehyde and Mechanism Elucidation
Gu, Jing,Xiao, Ben-Xian,Ouyang, Qin,Du, Wei,Chen, Ying-Chun
, p. 155 - 160 (2019/01/21)
3-Olefinic oxindoles can undergo interrupted Morita-Baylis-Hillman reaction with formaldehyde. Apart from the previous reported dephosphoration to access reductive aldol-type products, here we uncovered that completely different pathways were followed by tuning the substitutions of 3-olefinic oxindoles. In combination with formalin, an unexpected domino phosphorus-ylide formation, aldol-type addition, hemeacetal formation and O-substitution process was observed to produce 1,3-dioxolane derivatives. Moreover, a switchable sequence to produce formate derivatives via a key hydride transfer process was furnished by simply replacing formalin with paraformaldehyde. Density functional theory calculations were conducted to well elucidate the catalytic reaction mechanism.
