Results 21 to 30 of about 45,952 (286)

Efficient copper-catalyzed synthesis of C3-alkylated indoles from indoles and alcohols

open access: yes, 2021
A highly efficient copper(II) catalyst system for alkylation of indoles with alcohols via hydrogen borrowing method has been developed to afford C3-alkylated indoles in good to excellent yields. Cu(OAc)2 in the combination with dppm ligand has been found
Van Phuc, Ban   +20 more
core   +1 more source

Data for the lipase catalyzed synthesis of cyano-containing multi-substituted indoles

open access: yesData in Brief, 2021
The data presented here are related to the research paper entitled “Efficient Synthesis of Cyano-containing Multi-substituted Indoles Catalyzed by Lipase” [1].
Fengxi Li   +5 more
doaj   +1 more source

Fluorescent Pyranoindole Congeners: Synthesis and Photophysical Properties of Pyrano[3,2-f], [2,3-g], [2,3-f], and [2,3-e]Indoles

open access: yesMolecules, 2022
This paper reports the synthesis of four types of annulated pyranoindole congeners: pyrano[3,2-f]indole, pyrano[2,3-g]indole, pyrano[2,3-f]indole, and pyrano[2,3-e]indole and photophysical studies in this series.
Ainur D. Sharapov   +11 more
doaj   +1 more source

Synthesis of indoles, indolines, and carbazoles via palladium-catalyzed C–H activation

open access: yesGreen Synthesis and Catalysis, 2021
The construction of indole, indoline and carbazole heterocycles has been of significant interest in the synthetic community over the last century due to their prevalence in natural products and other biologically active compounds.
Alexander J. Rago, Guangbin Dong
doaj   +1 more source

Regioselectivity of the SEAr-based cyclizations and SEAr-terminated annulations of 3,5-unsubstituted, 4-substituted indoles

open access: yesBeilstein Journal of Organic Chemistry, 2022
Indole-3,4- and 4,5-fused carbo- and heterocycles are ubiquitous in bioactive natural products and pharmaceuticals, and hence, a variety of synthetic approaches toward such compounds have been developed.
Jonali Das, Sajal Kumar Das
doaj   +1 more source

Umpolung of Indoles: Triflic Acid-Mediated C3-Regioselective Hydroarylation of N-H Indoles [PDF]

open access: yes, 2022
The direct dearomative addition of arenes to the C3-position of unprotected indoles is reported under operationally simple condi-tions, using triflic acid at room temperature.
Vincent, Gandon   +4 more
core   +1 more source

Synthesis of pyrrolobenzothiadiazepines, pyrrolizidines and indoles [PDF]

open access: yes
In this thesis, novel syntheses of analogues of pyrrolobenzodiazepines (PBDs) are described. These compounds are of great interest as synthetic targets due to their potential medical properties.
Joãoa, Heidi
core   +3 more sources

One-Pot Synthesis of (E)-2-(3-Oxoindolin-2-ylidene)-2-arylacetonitriles

open access: yesMolecules, 2022
A highly efficient and expeditious one-pot approach towards 2-(3-oxoindolin-2-yl)acetonitriles was designed, which involves a base-assisted aldol reaction of ortho-nitroacetophenones, followed by hydrocyanation, triggering an unusual reductive ...
Nicolai A. Aksenov   +7 more
doaj   +1 more source

Sesquiterpenyl indoles

open access: yesNatural Product Reports, 2013
The natural product sesquiterpenyl indoles are structural hybrids from farnesyl pyrophosphate and tryptophan or its precursors, often with unusual and complex structural features, many of them with interesting biological activities. In this review the compounds of this class known until now are classified, a biosynthetic approach of each group is ...
Marcos, Isidro S.   +4 more
openaire   +3 more sources

A Novel C3/C4-Fused Indole Scaffold through Acid-Catalyzed Cascade Reaction

open access: yesMolecules
3,4-bridged indoles are underrepresented among the vast number of indoles described in the literature. Attempts to access 3,4-macrocyclized indoles led to the unexpected formation of a novel tetracyclic indole through intramolecular acid-catalyzed ring ...
Felix Potlitz   +5 more
doaj   +1 more source

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