Results 21 to 30 of about 679,253 (302)

Synthesis of Polysubstituted Ferrocenesulfoxides

open access: yesMolecules, 2022
The purpose of the study is to design synthetic methodologies, especially directed deprotometalation using polar organometallic reagents, to access polysubstituted ferrocenesulfoxides.
Min Wen   +6 more
doaj   +1 more source

Imine as a linchpin approach for meta-C–H functionalization

open access: yesNature Communications, 2021
Site-selective C–H functionalization still faces some challenges, such as the introduction and removal of an appropriate directing group. Here, the authors introduce a temporary directing group for selective meta-C–H functionalization of 2 ...
Sukdev Bag   +6 more
doaj   +1 more source

Distal Functionalization via Transition Metal Catalysis

open access: yesChemistry Proceedings, 2022
The ubiquitous presence of sp3 C−H bonds in natural feedstock makes them inexpensive, easily accessible, and attractive synthons for the preparation of common and/or complex molecular frameworks in biologically active natural products, pharmaceutics ...
Haibo Ge
doaj   +1 more source

Transition-metal-catalyzed aromatic C–H functionalization assisted by the phosphorus-containing directing groups

open access: yesGreen 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

Synthesis of β-arylated alkylamides via Pd-catalyzed one-pot installation of a directing group and C(sp3)–H arylation

open access: yesBeilstein 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

open access: yesMolbank, 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

Catalytic Undirected Meta‐Selective C–H Borylation of Metallocenes

open access: yesAdvanced Science, 2023
Metallocenes are privileged backbones in the fields of synthetic chemistry, catalysis, polymer science, etc. Direct C–H functionalization is undoubtedly the simplest approach for tuning the properties of metallocenes.
Hao Zheng   +6 more
doaj   +1 more source

Borane as an efficient directing group. Stereoselective 1,2-addition of organometallic reagents to borane P-stereogenic N-phosphanylimines [PDF]

open access: yes, 2017
In non-coordinating solvents, borane was shown to be an efficient directing group for the stereoselective 1,2-addition of organolithium reagents to P-stereogenic N-phosphanylimines. Selectivity was reversed in coordinating solvents. This process can lead
Flores-Gaspar, Areli   +4 more
core   +1 more source

Sensory over-responsivity and social cognition in ASD: Effects of aversive sensory stimuli and attentional modulation on neural responses to social cues. [PDF]

open access: yes, 2018
Sensory over-responsivity (SOR) is a common condition in autism spectrum disorders (ASD) that is associated with greater social impairment. However, the mechanisms through which sensory stimuli may affect social functioning are not well understood.
Bookheimer, Susan Y   +4 more
core   +2 more sources

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