A new synthetic approach to phenothiazine-2-amines

Takács, Daniella; Egyed, Orsolya; Drahos, László; Riedl, Zsuzsanna; Hajós, György

doi:10.1016/j.tetlet.2012.07.083

Cited by 3 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chemicals were commercially obtained and used as received. 10-(4-((4-Fluorophenyl)sulfonyl)phenyl)-10 H -phenothiazine ( M-0 ) was prepared according to the literature . Bis( p -fluorophenyl) sulfone, sulfenone, phenothiazine, sodium hydride, 5-nitroindole, potassium carbonate, sodium dodecyl sulfate (SDS), soybean lecithin, and cholesterol were purchased from Energy Chemical and used as received without further purification.…”

Section: Methodsmentioning

confidence: 99%

Highly Efficient Room-Temperature Light-Induced Synthesis of Polymer Dots: A Programming Control Paradigm of Polymer Nanostructurization from Single-Component Precursor

Zhang,

Li,

Luo

et al. 2023

J. Am. Chem. Soc.

View full text Add to dashboard Cite

Polymer dots (PDs) have raised considerable research interest due to their advantages of designable nanostructures, high biocompatibility, versatile photoluminescent properties, and recyclability as nanophase. However, there remains a lack of in situ, real-time, and noncontact methods for synthesizing PDs. Here we report a rational strategy to synthesize PDs through a welldesigned single-component precursor (an asymmetrical donor− acceptor−donor′ molecular structure) by photoirradiation at ambient temperature. In contrast to thermal processes that normally lack atomic economy, our method is mild and successive, based on an aggregation-promoted sulfonimidization triggered by photoinduced delocalized intrinsic radical cations for polymerization, followed by photooxidation for termination with structural shaping to form PDs. This synthetic approach excludes any external additives, rendering a conversion rate of the precursor exceeding 99%. The prepared PDs, as a single entity, can realize the integration of nanocore luminescence and precursor-transferred luminescence, showing 41.5% of the total absolute luminescence quantum efficiency, which is higher than most reported PD cases. Based on these photoluminescent properties, together with the superior biocompatibility, a unique membrane microenvironmental biodetection could be exemplified. This strategy with programming control of the single precursor can serve as a significant step toward polymer nanomanufacturing with remote control, high-efficiency, precision, and real-time operability.

show abstract

Section: Methodsmentioning

confidence: 99%