Pyrylium is a cation (positive ion) with formula C 5 H 5 O +, consisting of a six-membered ring of five carbon atoms, each with one hydrogen atom, and one positively charged oxygen atom. The bonds in the ring are conjugated as in benzene , giving it an aromatic character.

Pyrylium | C5H5O+ | CID 9548819 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

Over one century after its discovery, pyrylium salt chemistry has been extensively applied in preparing light emitters, photocatalysts, and sensitizers.

2021年5月5日 · In recent years, pyrylium salts have attracted increasing interest due to their unique properties and many possibilities of applications in light-driven processes. This review aims to summarize the performance of pyrylium derivatives in photoinduced processes in organic and polymer synthesis.

Pyrylium cations occupy a privileged position among six-membered heteroaromatics with a single heteroatom because oxygen is the most electronegative among all Y-type atoms.

In recent decades, pyrylium salt chemistry has emerged as a powerful approach for constructing complex macrocycles and metallo-supramolecules. In this perspective, we attempt to summarize the representative efforts of synthesizing and self-assembling large, complex architectures using pyrylium salt chemistry.

2023年4月1日 · Herein, we report an effective synthetic protocol to fabricate a new pyrylium-containing porous organic polymers (POPs), named TMP-P, via Knoevenagel condensation with 2,4,6-trimethylpyrylium salt (TMP) as the key building block and 1,4-phthalaldehyde as the linker.

2019年6月22日 · Both ac. anhydride and t-butanol have basicity potential (oxygen lone pairs), but the t-butanol conjugated acid can undergo [Dn] and [De] steps to form isobutylene, which can then act as a nucleophile on the reaction (the piece that seems to be missing in the reactants).

2020年10月14日 · In recent decades, pyrylium salt chemistry has emerged as a powerful approach for constructing complex macrocycles and metallo-supramolecules. In this perspective, we attempt to summarize the representative efforts of synthesizing and self-assembling large, complex architectures using pyrylium salt chemistry.

Selenopyrylium is an aromatic heterocyclic compound consisting of a six-membered ring with five carbon atoms and a positively charged selenium atom. [2][3] Formerly it was named selenapyrylium.