Spontaneous Generation of Aryl Carbocations from Phenols in Aqueous Microdroplets: Aromatic SN1 Reactions at the Air–Water Interface

A Nandy, A Kumar, S Mondal, D Koner… - Journal of the …, 2023 - ACS Publications
Although phenol is stable in bulk water, we report an exceptional phenomenon in which
phenol is spontaneously transformed into a phenyl carbocation (Ph+) in water microdroplets …

Heavy water microdroplet surface enriches the lighter isotopologue impurities

A Nandy, S Mondal, D Koner… - Journal of the American …, 2024 - ACS Publications
Water microdroplets promote unusual chemical reactions at the air–water interface.
However, the interfacial structure of water microdroplets and its potential influence on …

Synthesis and Structural Characterization of Carbazole‐Tailored Luminescent Triarylmethyl Radical and its Stable Cation

C Tang, Y Zhu, J Jin, S Zhang, K Zhou… - Angewandte …, 2024 - Wiley Online Library
The development of novel luminescent radicals, characterized by their unique doublet
emission, endows a significant challenge. In this study, we reported the synthesis of a …

Water Microdroplets in Air: A Hitherto Unnoticed Natural Source of Nitrogen Oxides

A Kumar, VS Avadhani, A Nandy, S Mondal… - Analytical …, 2024 - ACS Publications
Water microdroplets are widespread in the atmosphere. We report a striking observation that
micron-sized water droplets obtained from zero-volt spray sources (sonic spray, humidifier …

Stabilizing Highly Reactive Aryl Carbanions in Water Microdroplets: Electrophilic Ipso-Substitution at the Air–Water Interface

A Nandy, D Kalita, D Koner, S Banerjee - JACS Au, 2024 - ACS Publications
The fleeting existence of aryl carbanion intermediates in the bulk phase prevents their direct
observation and spectroscopic measurement. In sharp contrast, we report the direct …

Ultrafast C–C and C–N bond formation reactions in water microdroplets facilitated by the spontaneous generation of carbocations

T Wang, Z Li, H Gao, J Hu, HY Chen, JJ Xu - Chemical Science, 2023 - pubs.rsc.org
Carbocations are important electrophilic intermediates in organic chemistry, but their
formation typically requires harsh conditions such as extremely low pH, elevated …

Carbocation Mechanism Revelation of Molecular Iodine-Mediated Dehydrogenative Aromatization of Substituted Cyclic Ketones to Phenols

Y Jin, PV Petrovic, S Huang, S Banerjee… - The Journal of …, 2024 - ACS Publications
Dehydrogenative aromatization (DA) of cyclic ketones is central to the development of
functionalized aromatic precursors and hydrogen transfer–related technologies. Traditional …