Correction: An NNN Pd(II) pincer complex with 1,1-diaminoazine: a versatile catalyst for acceptorless dehydrogenative coupling reactions.

Correction for 'An NNN Pd(II) pincer complex with 1,1-diaminoazine: a versatile catalyst for acceptorless dehydrogenative coupling reactions' by Aabid A. Wani , , 2024, https://doi.org/10.

Stabilizing 4π electron pyrrolyl cations by inducing aromaticity.

The pyrrolyl cation is a 4π electron ring system which is anti-aromatic and unstable. This work reports an experimental procedure to obtain stable pyrrolyl cations. Electron donation from N-heterocyclic carbenes makes the ring stable by converting a 4π electron ring system into a 6π electron ring system.

Synthesis of Pyranocoumarin through MCRs: Modulation of this Approach as a Function of Substituent Effect Forms the Furocoumarin and 4-Hydroxy-3-styryl Coumarin as a Function of Solvent Effect.

The synthesis of pyranocoumarin is reported from 4-hydroxycoumarin, styrene oxide, and DMSO in the presence of -TSA·HO at 110 °C using a three-component reaction. Interestingly, a CH moiety from DMSO gets inserted in this reaction to form the pyranocoumarin ring. The plausible mechanism for this interesting reaction was proposed and validated using quantum chemical methods.

An NNN Pd(II) pincer complex with 1,1-diaminoazine: a versatile catalyst for acceptorless dehydrogenative coupling reactions.

An azine-based, non-palindromic, neutral NNN-pincer ligand was synthesised in a single step with an yield of 85%. The palladation of the ligand, using Pd(OAc), was performed in acetonitrile at room temperature to obtain the pincer complex in 88% yield through a simple, cost-effective, and straightforward synthetic procedure. The structure of the complex was confirmed by H NMR, C NMR, FT-IR, and mass spectrometry.

Stable, aromatic, and electrophilic azepinium ions: Design using quantum chemical methods.

Cyclic nitrenium ions containing five-membered and six-membered rings are available, however, the seven-membered cyclic nitrenium ions (azepinium ions) are rare. The chemistry of these species is related to their stability originating from the aromaticity due to 6π electrons. Very few theoretical and experimental studies have been conducted on the azepinium ions.