Articles with "direct ortho" as a keyword



Direct ortho‐Selective Amination of Naphthols with Nitroarenes through Transfer‐Hydrogenation

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Published in 2024 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.202400089

Abstract: Hydrogen atom transfer from commonly used solvents to nitroarenes occurred. Such solvents required C(sp3)H‐C(sp3)H bond adjacent to oxygen atoms, such as 1,4‐dioxane, tetrahydrofuran, alkanol, ethylene glycol, glycerol and bis(2‐methoxyethyl) ether. The transformation was transition‐metal free and the… read more here.

Keywords: direct ortho; ortho; selective amination; naphthols nitroarenes ... See more keywords

Microwave assisted chemistry: A rapid and regioselective route for direct ortho-acylation of phenols and naphthols by methanesulfonic acid as catalyst

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Published in 2017 at "Arabian Journal of Chemistry"

DOI: 10.1016/j.arabjc.2013.10.017

Abstract: Abstract Direct ortho -acylation of phenols and naphthols with methanesulfonic acid (MSA) as the catalyst has been studied under microwave stimulation. The microwave assisted reaction was environmentally benign in terms of faster reaction, useful conditions… read more here.

Keywords: acylation phenols; chemistry; reaction; direct ortho ... See more keywords
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Pd-Catalyzed highly selective and direct ortho C–H arylation of pyrrolo[2,3-d]pyrimidine derivatives

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Published in 2020 at "Organic chemistry frontiers"

DOI: 10.1039/c9qo01312a

Abstract: The first Pd-catalyzed one-pot direct ortho C–H arylation of pyrrolo[2,3-d]pyrimidine derivatives is reported. Many functional groups are well tolerated under these direct C–H arylation conditions. This protocol provides a variety of biphenyl-containing pyrrolo[2,3-d]pyrimidines in good… read more here.

Keywords: pyrrolo pyrimidine; chemistry; arylation; ortho arylation ... See more keywords