Results 61 to 70 of about 7,252 (218)

Synthesis of Spiro Heterocyclic Compounds

E-Journal of Chemistry, 2010
Reaction of isatin with acetophenone derivatives gave 3-hydroxy-3-phenacyl oxindole derivatives (II), dehydration of (II) gave 3-phenacylidene-2-indolinone derivatives (III).
Mohamed N. Ibrahim, Mohamed F. El-Messmary, Mohamed G. A. Elarfi   +2 more
doaj   +1 more source

Microwave‐Assisted Organic Syntheses in Deep Eutectic Solvents: A Win‐Win Association for Sustainable Chemistry

ChemistryOpen, Volume 15, Issue 4, April 2026.
In organic synthesis, deep eutectic solvents (DES) have demonstrated their ability to be used as reaction media for the development of reactions in line with green chemistry principles. This review presents an overview of microwave‐assisted organic synthesis in DES, highlighting the diversity of uses for these solvents, their role in mechanisms, the ...
Pierre‐Olivier Delaye, Chefikou Salami, Emilie Thiery   +2 more
wiley   +1 more source

Thermal and structural analysis of 4,5,6-trimethoxyisatin [PDF]

, 2009
4,5,6-Trimethoxyisatin was crystallized from water to give dark red needles that were characterized by NMR and IR spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), single-crystal X-ray diffraction (XRD) and hot ...
Campos, Ana M. F. Oliveira, Francisco, Carla Santana, Oliveira, M. J., Paz, Filipe A. Almeida, Rodrigues, Lígia M., Silva, Maria Manuela, Smith, Michael John   +6 more
core   +1 more source

Progress and Prospects of Sustainable Textile Processing Through Immobilized Enzyme Systems

ChemistrySelect, Volume 11, Issue 16, 27 April 2026.
The review presents recent advances in the use of immobilized enzymes for sustainable textile processing, detailing mechanisms that enhance stability, activity, and recyclability. It surveys applications in desizing, scouring, bleaching, bio‑polishing, and surface modification and examines their role in circular production.
Mohammad Neaz Morshed, Md. Reazuddin Repon, Rony Mia, Sakil Mahmud   +3 more
wiley   +1 more source

Efficient synthesis and antimicrobial evaluation of some Mannich bases from 2-arylidine-1-thia-4-azaspiro[4.5]decan-3-ones [PDF]

, 2015
BACKGROUND: Thiazolidinone, has been employed in the preparation of different important drugs required for treatment of inflammations, bacterial infections, and hypertension. Mannich bases have been shown to exhibit diverse biological activities, such as
Essam M Hussein, Ghada S Masaret, Khalid S Khairou   +2 more
core   +1 more source

Forward genetic screening of mutants of the wild diploid ancestor Nicotiana sylvestris identifies aspartate oxidase 2 as a key gene for nicotine biosynthesis in cultivated allotetraploid tobacco (Nicotiana tabacum)

The Plant Journal, Volume 126, Issue 1, April 2026.
SUMMARY Tobacco (Nicotiana tabacum) is one of the most important commercial crops. It is an allotetraploid with two subgenomes derived from two wild diploid species: the maternal ancestor Nicotiana sylvestris and the paternal ancestor Nicotiana tomentosiformis.
Takanori Takeuchi, Hisashi Udagawa, Masao Arai, Ryo Nishiguchi, Tsubasa Yoshikiyo, Tomoyuki Tajima, Hiroshi Magome, Yoshimitsu Takakura   +7 more
wiley   +1 more source

A Series of Isatin-Hydrazones with Cytotoxic Activity and CDK2 Kinase Inhibitory Activity: A Potential Type II ATP Competitive Inhibitor

Molecules, 2020
Isatin derivatives potentially act on various biological targets. In this article, a series of novel isatin-hydrazones were synthesized in excellent yields.
Huda S. Al-Salem, Md Arifuzzaman, Hamad M. Alkahtani, Ashraf N. Abdalla, Iman S. Issa, Aljawharah Alqathama, Fatemah S. Albalawi, A. F. M. Motiur Rahman   +7 more
doaj   +1 more source

Synthesis and fluorine-mediated interactions in methanol-encapsulated solid state self-assembly of an isatin-thiazoline hybrid

, 2015
International audienceAn exciting isatin-thiazoline hybrid molecule 2 having -C=N-N=C- linkage has been synthesized in 88% yield by the reaction of 5-fluoroisatin with N-(4-fluorophenyl)hydrazinecarbothioamide followed by condensation of the resultant ...
Ahmad, Maqbool, Hadda, Taibi B., Naseer, Muhammad Moazzam, Pervez, Humayun, Toupet, Loic   +4 more
core   +3 more sources

N-methylisatin-beta-thiosemicarbazone derivative (SCH 16) is an inhibitor of Japanese encephalitis virus infection in vitro and in vivo [PDF]

, 2008
Background During the early and mid part of 20th century, several reports described the therapeutic effects of N-methylisatin-β-Thiosemicarbazone (MIBT) against pox viruses, Maloney leukemia viruses and recently against HIV.
Liba Sebastian, Anita Desai, Madhusudana N Shampur, Yogeeswari Perumal, D Sriram, Ravi Vasanthapuram   +5 more
core   +2 more sources

Universal Fluorine‐Free Proton Exchange Polymers for High‐Performance and Durable Fuel Cells Operable Under Severe Conditions

Advanced Materials, Volume 38, Issue 14, 6 March 2026.
Due to excellent physical and chemical stability, the novel designed fluorine‐free polymers with aliphatic‐chain backbones (SP‐PAC12‐QP) are regarded as promising and universal alternatives to perfluorosulfonic acid membranes. Their performances are further improved by physical reinforcement, where the fuel cell performance under high temperature and ...
Fanghua Liu, Kenji Miyatake, Ick Soo Kim, Ahmed Mohamed Ahmed Mahmoud, Vikrant Yadav, Fang Xian   +5 more
wiley   +1 more source