Strategies for total synthesis of bispyrrolidinoindoline alkaloids

Z Ma, A Zhou, C Xia - Natural Product Reports, 2022 - pubs.rsc.org
Covering up to 2021 Complex cyclotryptamine alkaloids with a bispyrrolidino [2, 3-b]
indoline (BPI) skeleton are an intriguing family of natural products, exhibiting wide …

Electrochemical dehydrogenative cyclization of 1, 3-dicarbonyl compounds

ZJ Wu, SR Li, H Long, HC Xu - Chemical Communications, 2018 - pubs.rsc.org
The intramolecular C (sp3)–H/C (sp2)–H cross-coupling of 1, 3-dicarbonyl compounds has
been achieved through Cp2Fe-catalyzed electrochemical oxidation. The key to the success …

Construction of quaternary carbon center via NHC catalysis initiated by an intermolecular Heck-type alkyl radical addition

L Su, H Sun, J Liu, C Wang - Organic Letters, 2021 - ACS Publications
A quaternary carbon center containing an oxindole motif is constructed via NHC-catalyzed
transition-metal and aldehyde-free intermolecular Heck-type alkyl radical addition initiated …

Oxindole synthesis via polar–radical crossover of ketene-derived amide enolates in a formal [3+ 2] cycloaddition

N Radhoff, A Studer - Chemical Science, 2022 - pubs.rsc.org
Herein we introduce a simple, efficient and transition-metal free method for the preparation
of valuable and sterically hindered 3, 3-disubstituted oxindoles via polar–radical crossover …

A simple oxindole-based colorimetric HSO4¯ sensor: Naked-eye detection and spectroscopic analysis

S Bayindir, F Lafzi - Journal of Photochemistry and Photobiology A …, 2019 - Elsevier
Detection of hydrogen sulfate from an aqueous organic solvent systems medium attracts to
lots of interest because of could be in most environmental and biological systems. In this …

Transition-Metal Free Oxidative Alkynylation of 2-Oxindoles with Ethynylbenziodoxolone (EBX) Reagents

A Roy, MK Das, S Chaudhuri… - The Journal of Organic …, 2018 - ACS Publications
We report an efficient direct alkynylations of 3-alkyl/aryl 2-oxindoles employing ethynyl-1, 2-
benziodoxol-3 (1H)-one (EBX) to afford a wide variety of 3-alkynyl-3-alkyl/aryl 2-oxindole …

Recent Advances in Transition Metal Catalyzed Synthesis of C3-Substitution-free 2-Oxindole Derivatives

PP Das, D Das - Mini-Reviews in Organic Chemistry, 2024 - ingentaconnect.com
2-Oxindole unit is one of the most important scaffolds found in several alkaloids, natural
products, antitumor agents, pharmaceutically important compounds, etc. Molecules …

Low-temperature, transition-metal-free cross-dehydrogenative coupling protocol for the synthesis of 3, 3-disubstituted oxindoles

JR Donald, RJK Taylor… - The Journal of organic …, 2017 - ACS Publications
A new low-temperature procedure for the synthesis of 3, 3-disubstituted 2-oxindoles via
cross-dehydrogenative coupling (CDC) is reported. The use of a strong, nonreversible base …

A simple iodine–DMSO-promoted multicomponent reaction for the synthesis of 2, 4-disubstituted dihydrotriazole-3-ones

H Liao, Z Huang, Q Zhu - Organic & Biomolecular Chemistry, 2022 - pubs.rsc.org
A simple iodine–DMSO-promoted multicomponent reaction for the synthesis of 2,4-disubstituted
dihydrotriazole-3-ones - Organic & Biomolecular Chemistry (RSC Publishing) DOI:10.1039/D2OB00352J …

Cross-Dehydrogenative Cyclization–Dimerization Cascade Sequence for the Synthesis of Symmetrical 3, 3′-Bisoxindoles

F Dobah, CM Mazodze, WF Petersen - Organic Letters, 2021 - ACS Publications
The synthesis of symmetrical 3, 3′-bisoxindoles from simple acyclic β-oxoanilides is
reported. The described method forges three new C–C bonds in a single step via a …