Results 101 to 110 of about 21,297 (236)
Advanced Synthesis &Catalysis, Volume 368, Issue 11, 3 June 2026.The catalytic carbonylation of alkynes is a powerful route to heteroaromatic scaffolds, yet achieving regioselectivity remains challenging. Herein, we report a divergent carbonylative cyclization of 2‐alkynylphenol derivatives that affords either coumarins (6‐endo‐dig) or 2‐coumaranones (5‐exo‐dig) by tuning the palladium‐based catalytic system. Pd(OAc)
Aleksandr Voronov +11 more
wiley +1 more source
Structure–Reactivity Relationship of β‐O‐4 Linkers in Lignin Model Compound Catalytic Pyrolysis
Advanced Energy and Sustainability Research, Volume 7, Issue 6, June 2026.Acid‐catalyzed pyrolysis of lignin model dimers reveals that retro‐ene and Maccoll elimination pathways compete with dehydration reactions, depending on the substituent at the β‐O‐4 linkage. We unveil these reaction mechanisms utilizing photoionization mass spectrometry with VUV synchrotron radiation.
Max Jueckstock +10 more
wiley +1 more source
5-Bromo-2-(4-fluorophenyl)-3-methylsulfinyl-1-benzofuran [PDF]
, 2010 In the title compound, C15H10BrFO2S, the O atom and the methyl group of the methylsulfinyl substituent are located on opposite sides of the plane through the benzofuran fragment.
Pil Ja Seo +3 more
core +1 more source
Isolation and structural identification of benzofuran glycosides from styrax officinalis
, 2006 Bu çalışmada Styrax officinalis tohumlarından benzofuran türevlerinin izolasyonu ve yapılarının aydınlatılması çalışılmıştır. Çalışma sonucunda; I- 5-[3¢¢-(2¢¢¢-methylbutanoyloxy)propyl]-7-methoxy (3',4'-methylenedioxy phenyl) - benzofuaran II- 5-(3 ...
Yalçınkaya Ongan, Rabia
core
Scheme 2. Radiosynthesis of iodinated pyridyl benzofuran derivatives.
, 2013 Scheme 2. Radiosynthesis of iodinated pyridyl benzofuran derivatives.
Kenji Matsumura (458367) +10 more
core +1 more source
Journal of Taibah University for Science, 2019 The ever-increasing spread of bacterial infection with rising antibacterial drug resistance has become a matter of global concern in the modern times. Therefore, such serious infections leading to high mortality rate has necessitated the search for new ...
Bhushan Nazirkar +2 more
doaj +1 more source
Chemistry &Biodiversity, Volume 23, Issue 6, June 2026.An Epicoccum fungus was isolated from gut of larvae of the butterfly Dione juno juno that feeds intensively on leaves of Passifloras. This fungus produces hydroxyanthraquinones that moderately inhibits growth of some Bacillus that coexist with the fungus in the insect gut, suggesting that it is probably important for microbial embalance in gut flora ...
Jessica Teixeira Dias +5 more
wiley +1 more source
2,5,7-Trimethyl-3-phenylsulfonyl-1-benzofuran
, 2008 The title compound, C17H16O3S, was prepared by the oxidation of 2,5,7-trimethyl-3-phenylsulfanyl-1-benzofuran with 3-chloroperoxybenzoic acid. The phenyl ring exhibits a dihedral angle of 81.16 (4)° with the plane of the benzofuran fragment ...
Pil Ja Seo +3 more
core +1 more source
Synthesis of novel 13α-estrone derivatives by Sonogashira coupling as potential 17β-HSD1 inhibitors
Beilstein Journal of Organic Chemistry, 2017 Novel 13α-estrone derivatives were synthesized by Sonogashira coupling. Transformations of 2- or 4-iodo regioisomers of 13α-estrone and its 3-methyl ether were carried out under different conditions in a microwave reactor. The 2-iodo isomers were reacted
Ildikó Bacsa +6 more
doaj +1 more source
ChemistryEurope, Volume 4, Issue 6, June 2026.Novel Pt catalysts supported on zeolitic silicoaluminophosphate efficiently promoted the hydrogenative conversion of furoic acid to δ‐valerolactone under mild conditions. High activity arose from finely dispersed Pt nanoparticles stabilized by the porous support. Mechanistic studies indicated site‐selective partial hydrogenation followed by Csp²–O bond
Haruro Ishitani +3 more
wiley +1 more source