Results 31 to 40 of about 487 (160)
, 2010 5-Substituted 1,2-dihydro-3-benzoxepins can be prepared in reasonable overall yields from α-substituted 2-bromo-β-methoxystyrenes. Thus, the reaction of α-substituted 2-lithio-β-methoxystyrenes, generated by the bromine-lithium exchange between α ...
Kazuhiro Kobayashi +4 more
semanticscholar +1 more source
Advances in Pharmacological and Pharmaceutical Sciences, Volume 2025, Issue 1, 2025.Lung cancer and breast cancer are two types of cancer that cause and contribute to the highest mortality rate in the world. The development of anticancer agents that have high efficacy and relatively low side effects continues to be developed and is the focus of research, and one of the raw materials that can be explored is active compounds sourced ...
Kasta Gurning +4 more
wiley +1 more source
Osmium‐Catalyzed 7‐endo Heterocyclization of Aromatic Alkynols into Benzoxepines
Angewandte Chemie International Edition, 2010 The wizard of Os: Regioselective osmium-catalyzed 7-endo heterocyclization of aromatic alkynols affords benzoxepines in good yields. The proposed catalytic cycle involves the key formation of osmium–vinylidene complexes via an alkynyl-hydride–osmium(IV) complex from the starting alkynol.
Alejandro, Varela-Fernández +4 more
openaire +3 more sources
Impact of Drying Methods on Bioactive Compounds and Antioxidant Properties of Kalanchoe ceratophylla
Scientifica, Volume 2025, Issue 1, 2025.Kalanchoe species have been used as herbal medicines in traditional Asian medicine. One of the Kalanchoe species that has the potential as a medicinal plant and is still limited in its studies is Kalanchoe ceratophylla. This study investigated the effects of drying methods, namely, freeze drying (FD) and hot air drying (HAD), on bioactive compounds ...
Lamhot Parulian Manalu +17 more
wiley +1 more source
An improved two-step regioselective synthesis of naphth[1,2,-b]- and naphtha(2, 1-b]oxepin-5-ones [PDF]
, 1998 1027 ...
Chhor, R B, Goswamy, G K, Tandon, V K
core
Environmental Progress &Sustainable Energy, Volume 43, Issue 2, March/April 2024.Abstract In this study, Datura stramonium L. plant was converted into liquid products by hydrothermal liquefaction method with and without catalysts (Al, Zn, and Cu). The reaction temperature was determined as 300, 325, and 350°C, and the waiting time was determined as 30 min.
Salih Genel
wiley +1 more source
Entwicklung von neuen Methoden in der Phosphorredoxkatalyse [PDF]
Die vorliegende Arbeit beschäftigt sich mit der Überführung von Phosphan vermittelten Reaktionen in neue Methoden, welche Phosphorredoxkatalyse anwenden. Das Repertoire der katalytischen Varianten wurde auf die Appel-Reaktion erweitert. Ebenso wurde eine
Longwitz, Lars (gnd: 1212207394)
core +1 more source
Applying Research Results to Production Chemistry in the Galapagos Research Center Ltd., Zagreb [PDF]
, 2011 Tvrtka Galapagos istraživački centar d. o. o. privatna je znanstvena organizacija, aktivna u područjima kemije, biologije, biomedicine, veterine i farmacije.
K. Kovačević +3 more
core +1 more source
, 2010 Four novel classes of structurally related fused hetero-pentacyclic compounds such as the [1,2]-fused naphthothienobenzoxepins (XIIIa) and (XIIIb), and the [1,2]-fused naphthothienobenzothiepine (XIIIc) are synthesized.
I. Landek +5 more
semanticscholar +1 more source