Results 91 to 100 of about 17,659,431 (225)

Reshaping the 2-Pyrone Synthase Active Site for Chemoselective Biosynthesis of Polyketides. [PDF]

Angew Chem Int Ed Engl, 2023
Zhou Y, Mirts EN, Yook S, Waugh M, Martini R, Jin YS, Lu Y.   +6 more
europepmc   +1 more source

THE MOLECULAR ZEEMAN EFFECT IN 2-CYCLOPENTANE-1-ONE, 2-PYRONE, AND 4-PYRONE

, 1971
Author Institution: Noyes Chemical Laboratory, University of IllinoisThe molecular Zeeman effect in several similar ring compounds has been studied. In 2-cyclopentene-1-one this yielded the Zeeman parameters of $g_{aa} = -0.088\pm 0.002, {g}_{bb} = -0 ...
Benson, R. C., Norris, C. L., Beak, P. A., Flygare, W. H.   +3 more
core  

Regioselectivity in the Sonogashira coupling of 4,6-dichloro-2-pyrone

, 2006
The Sonogashira cross-coupling of 4,6-dichloro-2-pyrone with terminal acetylenes proceeds in good yields and high regioselectivity for the 6-position; dibenzylidene acetone (dba) type ligands play a non-innocent role in reactions mediated by Pd(dba)2 ...
Fairlamb, Ian J.S., Lam, King Chung, O'Brien, Ciara T., Lin, Zhenyang   +3 more
core   +1 more source

Preparative Separation of Main Ustilaginoidins from Rice False Smut Balls by High-Speed Counter-Current Chromatography

Toxins, 2016
Ustilaginoidins are bis-naphtho-γ-pyrone mycotoxins isolated from the rice false smut balls (FSBs) infected by the pathogen Villosiclava virens in rice spikelets on panicles.
Weibo Sun, Xuejiao Dong, Dan Xu, Jiajia Meng, Xiaoxiang Fu, Xiaohan Wang, Daowan Lai, Ligang Zhou, Yang Liu   +8 more
doaj   +1 more source

Design, Synthesis, and Characterization of Novel Phosphorescent Iridium Complexes with Pyrone Auxiliary Ligands and ppy/dfppy/piq Cyclometalating Ligands

Inorganics
To develop high-performance iridium phosphorescent complexes, we designed and synthesized a series of iridium phosphorescent complexes (G-1, G-2, B-1, B-2, R-1, R-2) using 3-hydroxy-2-methyl-4-pyrone (maltol, short for mal) and 3-hydroxy-2-ethyl-4-pyrone
Wen Jiang, Leyuan Wang, Xiangguang Li, Caixian Yan, Qiaowen Chang   +4 more
doaj   +1 more source

Multi-step biosynthesis of the biodegradable polyester monomer 2-pyrone-4,6-dicarboxylic acid from glucose. [PDF]

Biotechnol Biofuels Bioprod, 2023
Zhou D, Wu F, Peng Y, Qazi MA, Li R, Wang Y, Wang Q.   +6 more
europepmc   +1 more source

[5 + 2] Pyrone−Alkene Cycloaddition Approach to Tetrahydrofurans. Expeditious Synthesis of (±)-Nemorensic Acid

, 2016
[5 + 2] Pyrone−Alkene Cycloaddition Approach to Tetrahydrofurans.
José L. Mascareñas (2526658), Luis Castedo (2170876), J. Ramón Rodríguez (2709652), Antonio Rumbo (1637530)   +3 more
core   +1 more source

Pericocins A–D, New Bioactive Compounds from sp

Natural Product Communications, 2015
One new dihydroisocoumarin, pericocin A (1) , one new chromone, pericocin B (2) , and two new α-pyrone derivatives, pericocins C-D (3–4) , together with two known compounds, 3-(2-oxo-2 H -pyran-6-yl)propanoic acid (5) and ( E )-3-(2-oxo-2 H -pyran-6-yl ...
Yue-Hua Wu, Gao-Keng Xiao, Guo-Dong Chen, Chuan-Xi Wang, Dan Hu, Yun-Yang Lian, Feng Lin, Liang-Dong Guo, Xin-Sheng Yao, Hao Gao   +9 more
doaj   +1 more source

Sorbicillasins A–B and Scirpyrone K from a Deep-Sea-Derived Fungus, Phialocephala sp. FL30r

Marine Drugs, 2018
Two new nitrogen-containing sorbicillinoids named sorbicillasins A and B (1 and 2) and a new 3,4,6-trisubstituted α-pyrone derivative, scirpyrone K (3), together with two known biosynthetically related polyketides (4–5), were isolated from ...
Zhenzhen Zhang, Xueqian He, Qian Che, Guojian Zhang, Tianjiao Zhu, Qianqun Gu, Dehai Li   +6 more
doaj   +1 more source

Coumarin (5,6-Benzo-2-pyrone) Trapping of an HDDA-Benzyne. [PDF]

Org Lett, 2021
Chinta BS, Lee D, Hoye TR.
europepmc   +1 more source