Results 31 to 40 of about 166,984 (347)
Regioselective Alkylation of an Oxonaphthalene-Annelated Pyrrol System
Molbank, 2009 The regioselective alkylation of an oxonaphthalene-annelated pyrrole system is reported. The regioselectivity of alkylation can be controlled by the selection of the solvent.
Helmut Spreitzer, Christiane Puschmann
doaj +1 more source
Molecules, 2021 Marine polysaccharides are part of the huge seaweeds resources and present many applications for several industries. In order to widen their potential as additives or bioactive compounds, some structural modifications have been studied.
Tiphaine Wong +6 more
doaj +1 more source
Open-Air Alkylation Reactions in Photoredox-Catalyzed DNA-Encoded Library Synthesis
Journal of the American Chemical Society, 2019 DNA-encoded library (DEL) technology is a powerful tool commonly used by the pharmaceutical industry for the identification of compounds with affinity to biomolecular targets. Success in this endeavor lies in sampling diverse chemical libraries. However,
J. Phelan +7 more
semanticscholar +1 more source
Dual Catalytic Platform for Enabling sp3 α C–H Arylation and Alkylation of Benzamides
, 2020 A dual catalytic sp3 α C–H arylation and alkylation of benzamides with organic halides is described.
A. W. Rand +7 more
semanticscholar +1 more source
Nickel-Catalyzed Reductive Alkylation of Heteroaryl Imines
, 2022 A Ni-catalyzed reductive cross-coupling of heteroaryl imines with C(sp3) electrophiles for the preparation of heterobenzylic amines is reported. This umpolung-type alkylation proceeds under mild conditions, avoids the pre-generation of organometallic ...
Marco, Brandstätter +2 more
core +1 more source
Study on the Alkylation Reactions of N(7)-Unsubstituted 1,3-Diazaoxindoles
Molecules, 2017 The chemistry of the 5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one (1,3-diazaoxindole) compound family, possessing a drug-like scaffold, is unexplored. In this study, the alkylation reactions of N(7)-unsubstituted 5-isopropyl-1,3-diazaoxindoles bearing ...
Eszter Kókai +5 more
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Direct C2–H alkylation of indoles driven by the photochemical activity of halogen-bonded complexes
Beilstein Journal of Organic Chemistry, 2023 A light-driven metal-free protocol for the synthesis of sulfone-containing indoles under mild conditions is reported. Specifically, the process is driven by the photochemical activity of halogen-bonded complexes formed upon complexation of a sacrificial ...
Martina Mamone +4 more
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Catalytic Alkylation of Brown Coal and Peat
Eurasian Chemico-Technological Journal, 2012 The alcohol alkylation of low-grade metamorphic coal and peat in the presence of mineral and organic acids was studied using FTIR, NMR, and GC-MS. The impact of the reaction conditions on the yield of extractable matter was investigated experimentally ...
S. I. Zherebtsov, Z. R. Ismagilov
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Selective sp3 C–H alkylation via polarity-match-based cross-coupling
Nature, 2017 The functionalization of carbon–hydrogen (C–H) bonds is one of the most attractive strategies for molecular construction in organic chemistry. The hydrogen atom is considered to be an ideal coupling handle, owing to its relative abundance in organic ...
C. Le +4 more
semanticscholar +1 more source
Chromium‐Catalyzed Alkylation of Amines by Alcohols
Angewandte Chemie, 2020 The alkylation of amines by alcohols is a broadly applicable, sustainable, and selective method for the synthesis of alkyl amines, which are important bulk and fine chemicals, pharmaceuticals, and agrochemicals.
Fabian Kallmeier +3 more
semanticscholar +1 more source