Convenient synthesis of 4-perfluoroalkyl-6-(2-naphthyl)-2-pyranones

Cao, Weiguo; Ding, Wei; Wang, Liyan; Song, Liping; Zhang, Qianyin

doi:10.1016/s0022-1139(01)00385-2

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Cited by 6 publications

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“…1 [36]. Its derivatives also have extensive application in syntheses, for example, 1,3-dioxolan-2-ylmethyltriphenylphosphonium bromide was used under phase transfer conditions when aldehydes were efficiently transformed into allylic dioxolanes with a Wittig-type reaction [37]; (2-naphthoyl) methyltriphenylphosphonium bromide in the presence of K 2 CO 3 in methylene chloride with methyl 2-perfluoroalkynoates at room temperature afforded methyl 4-(2-naphthoyl)-2-triphenylphosphoranylidene-3-perfluoroalkyl-3-butenoates [38].…”

Section: Introductionmentioning

confidence: 99%

Determination of bismuth in pharmaceutical products using methyltriphenylphosphonium bromide as a molecular probe by resonance light scattering technique

Cui

Wang

Cui

2007

Journal of Pharmaceutical and Biomedical Analysis

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Section: Introductionmentioning

confidence: 99%

Determination of bismuth in pharmaceutical products using methyltriphenylphosphonium bromide as a molecular probe by resonance light scattering technique

Cui

Wang

Cui

2007

Journal of Pharmaceutical and Biomedical Analysis

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Selective Synthesis of 5,6-Disubstituted 3-Methyl-2(2H)-pyranones and 6-Substituted 3-Methyl-2(2H)-pyranones, Including Fusalanipyrone and Gibepyrone A

et al. 2002

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The 6-substituted 3-bromo-5-iodo-2(2H)-pyranones 11, prepared by iodolactonization of the corresponding 5-substituted (E)-2-bromo-2-en-4-ynoic acids 10, were used as precursors to 5,6-disubstituted 3-methyl-2(2H)-pyranones 8 and 6-substituted 3-methyl-2(2H)-pyranones 7. The synthesis of compounds 8 involved two consecutive Stille-type reactions, whereas the approach followed to prepare compounds 7 consisted of the selective reduction of the dihalogen derivatives 11 to the corresponding 6-substituted 3-bromo-2(2H)-pyranones 12, followed by a Pd/Cu-catalysed reaction with tetramethyltin. However, this synthetic approach to compounds 7 proved to be unsuitable for preparing stereoiso-

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ChemInform Abstract: Convenient Synthesis of 4‐Perfluoroalkyl‐6‐(2‐naphthyl)‐2‐pyranones.

et al. 2001

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Convenient synthesis of 4-perfluoroalkyl-6-(2-naphthyl)-2-pyranones

Cited by 6 publications

References 5 publications

Determination of bismuth in pharmaceutical products using methyltriphenylphosphonium bromide as a molecular probe by resonance light scattering technique

Determination of bismuth in pharmaceutical products using methyltriphenylphosphonium bromide as a molecular probe by resonance light scattering technique

Selective Synthesis of 5,6-Disubstituted 3-Methyl-2(2H)-pyranones and 6-Substituted 3-Methyl-2(2H)-pyranones, Including Fusalanipyrone and Gibepyrone A

ChemInform Abstract: Convenient Synthesis of 4‐Perfluoroalkyl‐6‐(2‐naphthyl)‐2‐pyranones.

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