Triflimide (HNTf2) in Organic Synthesis

W Zhao, J Sun - Chemical reviews, 2018 - ACS Publications
Triflimide (HNTf2) is a commercially available and highly versatile super Brønsted acid.
Owing to its strong acidity as well as good compatibility with organic solvents, it has been …

Scope and advances in the catalytic propargylic substitution reaction

R Roy, S Saha - RSC advances, 2018 - pubs.rsc.org
Nucleophilic displacement of the propargylic alcohol is one of the sought-after methods in
the current scenario. The highly nucleophilic alkyne functional moiety along with its …

Trifluorinated Tetralins via I(I)/I(III)‐Catalysed Ring Expansion: Programming Conformation by [CH2CH2] → [CF2CHF] Isosterism

J Neufeld, T Stünkel… - Angewandte Chemie …, 2021 - Wiley Online Library
Saturated, fluorinated carbocycles are emerging as important modules for contemporary
drug discovery. To expand the current portfolio, the synthesis of novel trifluorinated tetralins …

Remote, Diastereoselective Cobalt-Catalyzed Alkene Isomerization–Hydroboration: Access to Stereodefined 1, 3-Difunctionalized Indanes

NG Léonard, WN Palmer, MR Friedfeld… - ACS …, 2019 - ACS Publications
The remote, diastereoselective hydroboration of 2-and 3-substituted indenes with a 2, 2′:
6′, 2 ″-terpyridine cobalt alkyl precatalyst is described that maintains high regio-and …

Stereoselective Dynamic Cyclization of Allylic Azides: Synthesis of Tetralins, Chromanes, and Tetrahydroquinolines

MR Porter, RM Shaker, C Calcanas… - Journal of the …, 2018 - ACS Publications
This report describes the stereoselective synthesis of 3-azido-tetralins,-chromanes, and-
tetrahydroquinolines via a tandem allylic azide rearrangement/Friedel–Crafts alkylation …

Triflic Acid-Catalyzed Synthesis of Indole-Substituted Indane Derivatives via In Situ Formed Acetal-Facilitated Nucleophilic Addition and 4π-Electron-5-Carbon …

G Ramesh, R Balamurugan - The Journal of Organic Chemistry, 2021 - ACS Publications
An efficient protocol for the synthesis of indole-substituted indanes from o-
alkenylbenzaldehydes under acetalization conditions has been presented. The cyclization …

Brønsted acid-catalyzed intramolecular hydroarylation of β-benzylstyrenes

X Cai, A Keshavarz, JD Omaque, BJ Stokes - Organic letters, 2017 - ACS Publications
Using triphenylmethylium tetrakis (pentafluorophenyl) borate as a convenient Brønsted acid
precatalyst, β-(α, α-dimethylbenzyl) styrenes are shown to cyclize efficiently to afford a …

Triflamides and triflimides: synthesis and applications

MY Moskalik, VV Astakhova - Molecules, 2022 - mdpi.com
Among the variety of sulfonamides, triflamides (CF3SO2NHR, TfNHR) occupy a special
position in organic chemistry. Triflamides are widely used as reagents, efficient catalysts or …

Access to highly functionalized indanes from arynes and α, γ-diketo esters

W Hu, C Zhang, J Huang, Y Guo, Z Fu, W Huang - Organic letters, 2019 - ACS Publications
An unprecedented method for the synthesis of highly functionalized indanes from arynes
and α, γ-diketo esters is described. Importantly, mild and nearly pH-neutral conditions …

1, 4-Dithianes: attractive C2-building blocks for the synthesis of complex molecular architectures

B Ryckaert, E Demeyere, F Degroote… - Beilstein Journal of …, 2023 - beilstein-journals.org
This review covers the synthetic applications of 1, 4-dithianes, as well as derivatives thereof
at various oxidation states. The selected examples show how the specific heterocyclic …