Results 21 to 30 of about 9,893,032 (297)
Copper Catalyzed C–H Sulfonylation of Benzylamines with a Catalytic Transient Directing Group [PDF]
, 2023 Transient CH functionalization involves the dynamic in situ generation of a directing group to allow directed C–H activation/cyclometallation and subsequent functionalization steps.
Joe I., Higham +5 more
core +2 more sources
Green Synthesis and Catalysis, 2023 Transition-metal-catalyzed C–H bond functionalization has attracted tremendous attention as an increasingly important protocol for the construction of C–C and C–X bonds.
Jian Zhang +5 more
doaj +1 more source
Tuning Reactivity in Pd-Catalysed C(sp3)-H Arylations via Directing Group Modifications and Solvent Selection [PDF]
, 2020 The palladium-catalysed sp3 C-H arylation of a selection of saturated amine scaffolds was investigated using substituted picolinamide directing groups.
Abil, Aliev +4 more
core +2 more sources
Directing-Group-Free Palladium-Catalyzed C–H Arylation of Aldoxime Using Oxime’s Umpolung Properties
, 2022 Alkyl aldoximes without a directing group undergo palladium-catalyzed C–H arylation with aryl bromides to afford alkyl aryl ketoximes in moderate to high yields.
Nobuyoshi Morita (1608451) +3 more
core +1 more source
Cowboys Directing a Group of Cattle
, 1915 A sepia photograph depicting two unidentified cowboys on horseback, directing a group of cows in front them a certain ...
Dixon, Maynard
core +5 more sources
A directed $d$-group that is not a group of divisibility [PDF]
Czechoslovak Mathematical Journal, 1984 The reviewer [Czech. Math. J. 32(107), 77-89 (1982; Zbl 0499.06013)] asked if there exists a directed ordered abelian group which admits a multivalued addition \(\oplus\) satisfying the axioms of d-groups but which is not a group of divisibility of an integral domain. In this note the author constructs such an example.
openaire +2 more sources
Directing-Group-Assisted Manganese-Catalyzed Cyclopropanation of Indoles
, 2019 The first manganese-catalyzed cyclopropanation of indoles is reported in moderate to excellent yield with methyl-2-diazo-2-arylacetates. This new strategy involved acetyl (COCH3) as the directing group and exhibited exceptional functional group tolerance.
Pratip K. Dutta (6205169) +3 more
core +2 more sources
Directing-Group-Enabled Cycloaddition of Azides and Alkynes toward Functionalized Triazoles
, 2020 Herein, we report a directing-group-enabled Huisgen cycloaddition of azides and alkynes for the synthesis of functionalized triazoles in which the triazene group could act as a directing group to enable this regioselective [3 + 2] cycloaddition and ...
Chen Zhang (66790) +9 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2016 The synthesis of β-arylated alkylamides via alkyl C–H bond arylation has been realized by means of direct one-pot reactions of acyl chlorides, aryl iodides and 8-aminoquinoline. Depending on the structure of the starting materials, both single and double
Yunyun Liu +3 more
doaj +1 more source
N-Benzo[c][1,2,5]thiazol-4-yl-3-trifluoromethylbenzamide
Molbank, 2019 The title compound, N-benzo[c][1,2,5]thiazol-4-yl-3-trifluoromethylbenzamide (1) was synthesized by reacting 3-trifluoromethylbenzoyl chloride (4) and 4-aminobenzo[c][1,2,5]thiadiazole (5). The compound was characterized by various spectroscopic methods (
Hamad H. Al Mamari +2 more
doaj +1 more source