Results 11 to 20 of about 52,984 (262)

A continuous-flow protocol for photoredox-catalyzed multicomponent Petasis reaction

STAR Protocols, 2022
Summary: Here, we present a robust protocol for the facile and rapid synthesis of functionalized secondary amines in continuous flow. More specifically, we describe a detailed guide to perform a photocatalyzed Petasis reaction within 50 min using alkyl ...
Monica Oliva, Frederick Martens, Erik V. Van der Eycken, Upendra Kumar Sharma   +3 more
doaj   +1 more source

Aquecimento em forno de microondas / desenvolvimento de alguns conceitos fundamentais Heating in microwave ovens/ developing of basic concepts

Química Nova, 2001
The microwave oven became a common domestic equipment, due mainly to the short time spent to heat foods. One of the most interesting characteristics of the microwave oven is the selective heating.
Ana Claudia R. N. Barboza, Camila V. M. S. Cruz, Marcelo B. Graziani, Myrian C. F. Lorenzetti, Edvaldo Sabadini   +4 more
doaj   +1 more source

Going with the µFlow: Reinterpreting Energy Input in Organic Synthesis

CHIMIA, 2023
The popularity of microflow chemistry has skyrocketed in the last 20 years, more and more chemists are switching from macro-batch reactors to miniaturized flow devices.
Laura Y. Vázquez-Amaya, Guglielmo A. Coppola, Erik V. Van der Eycken, Upendra K. Sharma   +3 more
doaj   +1 more source

‘‘Green’’ Suzuki-Miyaura cross-coupling: An exciting mini-project for chemistry undergraduate students

Educación Química, 2018
A three-week mini-project is described for an experimental Physical Chemistry or Organic Chemistry course. The activities include synthesis of a biphenyl (4-methoxybiphenyl) via the Suzuki-Miyaura cross-coupling reaction using an adapted domestic ...
Bruna Pereira Vargas, Clarissa Helena Rosa, Diego da Silva Rosa, Gilber Ricardo Rosa   +3 more
doaj   +1 more source

Bibliometric Study of Microwave-Assisted Synthesis of Flavanone Derivatives

Borneo Journal of Pharmacy, 2023
This study aims to describe various studies related to synthesizing flavanone derivatives using the microwave-assisted method with a bibliometric approach. Metadata information was collected from Scopus on June 30th, 2023, with three keywords (microwave-
Hadi Poerwono, Marcellino Rudyanto
doaj   +1 more source

Microwave-Assisted Heterocyclic Chemistry [PDF]

Journal of Chemical Education, 2006
This month's Featured Molecules include benzimidazole, succinic anhydride, phthalimide, piperazine-2,5-dione, 2,3-diphenylquinoxaline, 5,5-diphenylhydantoin, and benzoxazinone.
Edgars Suna, Ilga Mutule
openaire   +2 more sources

Synthesis of Pyrrolo[1,2-a]pyrimidine Enantiomers via Domino Ring-Closure followed by Retro Diels-Alder Protocol

Molecules, 2017
From 2-aminonorbornene hydroxamic acids, a simple and efficient method for the preparation of pyrrolo[1,2-a]pyrimidine enantiomers is reported. The synthesis is based on domino ring-closure followed by microwave-induced retro Diels-Alder (RDA) protocols,
Beáta Fekete, Márta Palkó, Matti Haukka, Ferenc Fülöp   +3 more
doaj   +1 more source

Microwave assisted green synthesis of thiazolidin-4-one derivatives: A perspective on potent antiviral and antimicrobial activities

Current Research in Green and Sustainable Chemistry, 2020
Thiazolidin-4-one has been known as a powerful moiety present in various approved medications. Thiazolidin-4-ones are amongst the most effective and actively explored fields of current antimicrobial and antiviral chemotherapy that portray broad spectrum ...
Neha Saini, Archana Sharma, Vijay Kumar Thakur, Charalampos Makatsoris, Anshu Dandia, Madhulika Bhagat, Rajiv Kumar Tonk, Prabodh Chander Sharma   +7 more
doaj   +1 more source

Antifreeze glycopeptide diastereomers

Beilstein Journal of Organic Chemistry, 2012
Antifreeze glycopeptides (AFGPs) are a special class of biological antifreeze agents, which possess the property to inhibit ice growth in the body fluids of arctic and antarctic fish and, thus, enable life under these harsh conditions. AFGPs are composed
Lilly Nagel, Carsten Budke, Axel Dreyer, Thomas Koop, Norbert Sewald   +4 more
doaj   +1 more source

Multicomponent Synthesis of Potentially Biologically Active Heterocycles Containing a Phosphonate or a Phosphine Oxide Moiety

Acta Chimica Slovenica, 2022
Several multicomponent synthetic approaches were elaborated for plenty of novel nitrogen or oxygen heterocycles containing a phosphonate or a phosphine oxide moiety.
Nóra Popovics-Tóth, Erika Bálint
doaj   +1 more source