Lemon juice catalyzed C–C bond formation via C–H activation of methylarene: a sustainable synthesis of chromenopyrimidines
Sign Up to like & getrecommendations! Published in 2019 at "Molecular Diversity"
DOI: 10.1007/s11030-019-09980-1
Abstract: Abstract An economical and proficient approach has been developed for the synthesis of chromenopyrimidines via three-component reaction of thiobarbituric acid/barbituric acid, methylarenes and dimedone/1,3-cyclohexanedione by using lemon juice as a natural, biodegradable catalyst and TBHP… read more here.
Keywords: formation via; lemon juice; bond formation; synthesis chromenopyrimidines ... See more keywords
In Situ Allene Formation via Alkyne Tautomerization to Promote [4 + 2]-Cycloadditions with a Pendant Alkyne or Nitrile.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c00491
Abstract: We have explored the net-[4 + 2]-cycloadditions of a variety of aryl (or alkenyl) alkynes. Tautomerization via base-catalyzed alkyne-to-allene isomerization produces a transient allene, which undergoes stepwise cyclization with not only a pendant alkyne but… read more here.
Keywords: via alkyne; allene formation; formation via; situ allene ... See more keywords
Tandem C-C/C-N Formation via Palladium-Catalyzed C-H Activation/Styrenation and Sequential Annulation of O-Methylketoxime with Styrenes.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b00702
Abstract: A novel route for tandem C-C/C-N formation via palladium-catalyzed C-H activation/styrenation and annulation of O-methylketoxime with styrenes to synthesize benzothienopyridines and benzofuropyridines has been developed. Furthermore, the intermolecular alkenylation of the ketoxime with acrylates produces… read more here.
Keywords: formation via; activation styrenation; via palladium; tandem formation ... See more keywords
Rh-Catalyzed C–C/C–N bond formation via C–H activation: synthesis of 2H-indazol-2-yl-benzo[a]carbazoles
Sign Up to like & getrecommendations! Published in 2019 at "Organic Chemistry Frontiers"
DOI: 10.1039/c9qo01120j
Abstract: Rh-Catalyzed site-selective C–H activation and ring opening/cyclization of 7-azabenzonorbornadienes with aryl-2H-indazoles is developed to furnish indazolyl-benzocarbazole frameworks. Substrate scope and mechanistic studies are important practical features. read more here.
Keywords: formation via; bond formation; activation synthesis; catalyzed bond ... See more keywords
Mild olefin formation via bio-inspired vitamin B12 photocatalysis†
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Science"
DOI: 10.1039/d0sc05925k
Abstract: Dehydrohalogenation, or elimination of hydrogen-halide equivalents, remains one of the simplest methods for the installation of the biologically-important olefin functionality. However, this transformation often requires harsh, strongly-basic conditions, rare noble metals, or both, limiting its… read more here.
Keywords: formation via; mild olefin; olefin formation; vitamin b12 ... See more keywords
Silicon-nitrogen bond formation via dealkynative coupling of amines with bis(trimethylsilyl)acetylene mediated by KHMDS.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc04413g
Abstract: The catalytic synthesis of silylamines mediated by s- and p-block catalysts is largely underdeveloped. Herein, commercially available potassium bis(trimethylsilyl)amide serves as an efficient alternative to transition metal complexes. N-H/Si-C dealkynative coupling was achieved by means… read more here.
Keywords: formation via; nitrogen bond; dealkynative coupling; bis trimethylsilyl ... See more keywords
Core formation via filament fragmentation and the impact of ambient pressure on it
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stac955
Abstract: Prestellar cores are generally spheroidal, some of which appear oblate while others appear prolate. Very few of them appear circular in projection. Little, however, is understood about the processes or the physical conditions under which… read more here.
Keywords: formation via; core formation; via filament; formation ... See more keywords
Asebogenin suppresses thrombus formation via inhibition of Syk phosphorylation
Sign Up to like & getrecommendations! Published in 2022 at "British Journal of Pharmacology"
DOI: 10.1111/bph.15964
Abstract: Thrombosis is a major cause of morbidity and mortality worldwide. Platelet activation by exposed collagen through glycoprotein VI (GPVI) and formation of neutrophil extracellular traps (NETs) are critical pathogenic factors for arterial and venous thrombosis.… read more here.
Keywords: asebogenin suppresses; formation via; suppresses thrombus; thrombus formation ... See more keywords
Near Field Formation via Colloid Particles in Problems of Nanoprocessing Silicon Substrates
Sign Up to like & getrecommendations! Published in 2018 at "Mathematical Models and Computer Simulations"
DOI: 10.1134/s2070048218010040
Abstract: A mathematical model for the analysis of the near field intensity distribution in problems of light scattering by particles on the substrate is developed based on the Discrete Sources Method. The influence of the size… read more here.
Keywords: formation via; via colloid; field; near field ... See more keywords
Nanoneedle formation via doughnut beam-induced Marangoni effects.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.460962
Abstract: Recently, nanosecond pulsed optical vortices enables the production of a unique chiral and sharp needle-like nanostructure (nano-needle). However, the formation process of these structures has been unsolved although mass transport by angular momentum would contribute… read more here.
Keywords: beam; formation via; via doughnut; nano needle ... See more keywords
Intramolecular C-N Bond Formation via Thermal Arene C-H Bond Activation Supported by Au(III) Complexes
Sign Up to like & getrecommendations! Published in 2021 at "Materials"
DOI: 10.3390/ma14071676
Abstract: One of the main tactics to access C-N bonds from inactivated C-H functionalities is direct transition metal-supported aminations. Due to the often harsh reaction conditions, the current goal in the field is the search for… read more here.
Keywords: intramolecular bond; formation via; via thermal; bond formation ... See more keywords