Results 101 to 110 of about 3,271,959 (246)
, 2017 The first catalytic asymmetric α-arylation of pyrazol-5-ones has been established by using 2-indolylmethanols as direct electrophilic arylation reagents under the cooperative catalysis of Pd(0) and a chiral phosphoric acid, which afforded the α-arylation
Zi-Qi Zhu (1771693) +4 more
core +2 more sources
Recent advances in direct C–H arylation: Methodology, selectivity and mechanism in oxazole series
Beilstein Journal of Organic Chemistry, 2011 Catalytic direct (hetero)arylation of (hetero)arenes is an attractive alternative to traditional Kumada, Stille, Negishi and Suzuki–Miyaura cross-coupling reactions, notably as it avoids the prior preparation and isolation of (hetero)arylmetals ...
Cécile Verrier +6 more
doaj +1 more source
European Journal of Inorganic Chemistry, EarlyView.Rollover cyclometalation is a distinctive variant of classical cyclometalation where a chelated heterocyclic ligand undergoes internal rotation, releasing one donor atom from coordination and subsequently activating a remote C─H bond with high regioselectivity.
Antonio Zucca, Maria I. Pilo
wiley +1 more source
, 2019 Palladium-catalyzed site-selective dearomative C2-arylation of 2,5-diaryl-1H-pyrroles with aryl chlorides was accomplished, and a series of 2,2,5-triaryl-2H-pyrroles were synthesized.
Sakiko Fujiwara +5 more
core +1 more source
Navigating the Radical Oxo‐Functionalization of Alkenes Toward Ketones
European Journal of Organic Chemistry, EarlyView.Straightforward access to complex ketones in a single synthetic step: This Review surveys the latest advances in three‐component alkene 1,2‐oxo‐functionalizations. The opportunities unlocked by the so‐called single‐electron (1e–) logic, including access to a broad pool of radical precursors and carbonyl oxygen atom sources, are highlighted.
Mattia Lepori +3 more
wiley +1 more source
European Journal of Organic Chemistry, EarlyView.The nickel‐catalyzed S═NH N‐arylation of sulfonimidamides is described, with useful demonstrated substrate scope involving inexpensive and widely available (hetero)aryl chloride reaction partners, including the active pharmaceutical ingredient chlorpromazine.
Samuel A. Fisher +2 more
wiley +1 more source
Direct arylation polymerization of asymmetric push–pull aryl halides
, 2017 Recently, direct arylation polymerization (DArP) has emerged as a greener polymerization method for donor–acceptor (D–A) type conjugated polymers.
Yan Zhao +6 more
core +1 more source
Synthesis of Flavones by Intramolecular O‐Arylation of Unactivated Halogenated Aryl‐1,3‐diketones
European Journal of Organic Chemistry, EarlyView.A protocol for the synthesis of flavone derivatives starting from mono‐ and dihalogenated diketones including fluorinated derivatives in a very simple and effective way is reported. Flavones are an important class of secondary metabolites in plants. Here we report a straightforward method for the conversion of unactivated halogenated 1,3‐biaryl‐1,3 ...
Lena Deutsch +8 more
wiley +1 more source
Intramolecular direct arylation
, 2018 The research conducted for this thesis has led to the development of an intramolecular gold-catalysed direct arylation protocol whereby tethered arenes and aryltrimethylsilanes are coupled (Scheme 1). In Chapter 1, the key synthetic and mechanistic studies that have ultimately led to the conception of this project are introduced.
openaire +2 more sources
Ruthenium‐Catalyzed Direct Arylations of N‐Aryl 1,2,3‐Triazoles with Aryl Chlorides as Electrophiles
ChemSusChem, 2009 AbstractRing ring ring: Ruthenium‐catalyzed direct arylations of N‐aryl 1,2,3‐triazoles with chlorides as arylating reagents proceed efficiently with an in situ generated complex derived from phosphane PCy3 in N‐methyl‐2‐pyrrolidone (NMP) as solvent.magnified ...
Ackermann, Lutz +2 more
openaire +3 more sources