Room temperature synthesis of bioactive 1, 2, 4-oxadiazoles

SV Baykov, AA Shetnev, AV Semenov… - International Journal of …, 2023 - mdpi.com
1, 2, 4-Oxadiazole is an essential motif in drug discovery represented in many experimental,
investigational, and marketed drugs. This review covers synthetic methods that allow the …

Catalytic Enantioselective Nucleophilic Addition to Arynes by a New Quaternary Guanidinium Salt-Based Phase-Transfer Catalyst

G Pan, M Pu, H Wang, M Ying, Y Li… - Journal of the …, 2023 - ACS Publications
Owing to the mild generation methods, arynes have been widely used in synthetic chemistry.
However, achieving asymmetric organocatalytic reactions with arynes remains a formidable …

Tetramethylammonium fluoride: fundamental properties and applications in CF bond-forming reactions and as a base

V Iashin, T Wirtanen, JE Perea-Buceta - Catalysts, 2022 - mdpi.com
Nucleophilic ionic sources of fluoride are essential reagents in the synthetic toolbox to
access high added-value fluorinated building blocks unattainable by other means. In this …

7-Azaindole N-Oxide (7-AINO) Mediated Cu-Catalyzed N-Arylation: Mechanistic Investigation into the Role of Fluoride Ions

K Mondal, N Mukhopadhyay, S Patra, T Roy… - ACS Catalysis, 2023 - ACS Publications
A Cu (II) fluoride-catalyzed N-arylation of 7-azaindole N-oxides (7-AINO) has been
developed using boronic acid under base-free conditions. During the process, a …

Direct synthesis and applications of solid silylzinc reagents

R Chandrasekaran, FT Pulikkottil, KS Elama… - Chemical …, 2021 - pubs.rsc.org
The increased synthetic utility of organosilanes has motivated researchers to develop milder
and more practical synthetic methods. Silylzinc reagents, which are typically the most …

Novel acridine-based thiosemicarbazones as 'turn-on'chemosensors for selective recognition of fluoride anion: a spectroscopic and theoretical study

IO Isaac, I Munir, M Al-Rashida… - Royal Society …, 2018 - royalsocietypublishing.org
New thiosemicarbazide-linked acridines 3a–c were prepared and investigated as
chemosensors for the detection of biologically and environmentally important anions. The …

Enantioselective acyl-transfer catalysis by fluoride ions

R Craig, M Litvajova, SA Cronin… - Chemical …, 2018 - pubs.rsc.org
The asymmetric nucleophilic catalysis by fluoride ions at a carbon-based electrophile has
been demonstrated for the first time. Using a library of ad hoc designed bifunctional phase …

Palladium-Catalyzed β-C–H Arylation of Alkyl Carboxamides with Sterically Hindered Aryl Iodides Using ortho-Sulfinyl Aniline Auxiliaries

D Mu, F Gao, G Chen, G He - ACS Catalysis, 2017 - ACS Publications
We disclose a pair of ortho-sulfinylaniline auxiliaries for palladium-catalyzed β–CH arylation
of alkyl carboxamides. Together, these auxiliaries offer a means to effect efficient β-methyl …

1,3-Migrative Ring Expansion of Spiroindolenines to Azepino[3,4-b]indoles

H Tanaka, T Yasui, M Uyanik, K Ishihara - Organic Letters, 2023 - ACS Publications
We serendipitously found an unprecedented 5-to-7-membered ring expansion of 2-
alkylspiroindolenines to azepinoindoles mediated by n-tetrabutylammonium fluoride. The …

Fluoride-mediated dephosphonylation of α-diazo-β-carbonyl phosphonates

RS Phatake, V Mullapudi, VC Wakchaure… - Organic …, 2017 - ACS Publications
The possibility of fluoride-mediated selective dephosphonylation of α-diazo-β-carbonyl
phosphonates such as the Ohira–Bestmann reagent has been proposed and executed. The …