Pyran - Wikipedia
网页Pyran is a six-membered heterocyclic ring with two double bonds and one oxygen atom. Learn about the two isomers of pyran (2 H and 4 H), their properties, stability and applications in chemistry and biology.
Pyrrhic victory - Wikipedia
网页A Pyrrhic victory is a victory that inflicts such a devastating toll on the victor that it is tantamount to defeat. The term comes from King Pyrrhus of Epirus, who suffered heavy losses in his wars against the Romans. See historical examples of Pyrrhic victories in different conflicts.
pyranic - Wiktionary, the free dictionary
网页2023年1月16日 · pyranic (comparative more pyranic, superlative most pyranic) (organic chemistry) concerning pyran
Pyranic Definition & Meaning - YourDictionary
网页Pyranic definition: (organic chemistry) Concerning <a>pyran.</a>.
Pyran - an overview | ScienceDirect Topics
网页Pyran is a six-membered oxygen heterocycle with two double bonds. Learn about its synthesis, properties, reactions, and uses in pharmaceuticals, dyes, catalysts, and more from various chapters and articles on ScienceDirect.
Flavanols: Catechins and Proanthocyanidins | SpringerLink
网页2013年1月1日 · Flavan-3-ols, flavan-4-ols, and flavan-3,4-diols are different classes of flavonoid compounds comprising a C15 (C6-C3-C6) general structure of a benzopyran moiety (A and C rings) that presents an aromatic ring (B ring) linked to carbon C-2 of pyranic ring C (Fig. 57.1). The difference between each of these classes is in the hydroxylation ...
Pyrrhic victory | Definition, Origin, & Examples | Britannica
网页A Pyrrhic victory is a success that brings such significant harm to the victor that it differs little from defeat. Learn about the origin of the term from King Pyrrhus of Epirus and some notable examples of Pyrrhic victories in military history and other contexts.
Synthesis, characterization, and in vitro antimicrobial investigation ...
网页2019年9月12日 · The web page reports the preparation and characterization of novel pyranoquinoline compounds based on 8-hydroxyquinoline, a heterocyclic moiety with various applications. The compounds were tested for their antibacterial activity against Gram-positive and Gram-negative bacterial strains using disc diffusion method.
trans-Linalool oxide (pyranoid) - NIST Chemistry WebBook
网页2010年1月5日 · A chemical compound with the formula C10H18O2 and the IUPAC name trans-Linalool oxide (pyranoid). It has a chemical structure similar to linalool oxide and pyran, and is a stereoisomer of linalool oxide II.
Borate–pyran lean electrolyte-based Li-metal batteries with
网页2023年11月23日 · We discovered that the borate–pyran electrolyte transforms large LiF crystallites in the solid–electrolyte interphase into fine crystalline or glassy LiF, which enhances the passivity of the...
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