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Inamura, Yutaka

doi:10.1246/nikkashi.1974.2011

Cited by 3 publications

(2 citation statements)

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“…A typical ROESY spectra for 6b (C 6 D 6 ) showed cross-peaks between the protons attached to C6 (δ 3.61) and C7 (δ 2.72) and the proton at C4 (δ 4.15) as well as between protons on C7 (δ 2.72) and that on C2 (δ 3.98), confirming the trans relationship of contiguous groups about the ring. THF 6a has previously been reported in the reduction of trans -1,2-dibenzoylethylene with aluminum isopropoxide; however, in this study the stereochemistry of the side chain was not determined . The stereochemistry of the C6 hydroxyl center for THF 6 was found by conversion of 6b to its corresponding acetate 10b and X-ray crystallographic structure determination, Figure 2 in the Supporting Information.…”

Section: Resultsmentioning

confidence: 73%

A Novel Synthesis of Functionalized Tetrahydrofurans by an Oxa-Michael/Michael Cyclization of γ-Hydroxyenones

et al. 2003

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An approach to highly functionalized tetrahydrofuran derivatives based upon a novel Oxa-Michael/Michael dimerization of cis-gamma-hydroxyenones is presented. The reaction begins with either 1,2-dioxines or trans-gamma-hydroxyenones and proceeds by addition of one molecule of trans-gamma-hydroxyenone to another molecule of cis- or trans-gamma-hydroxyenone catalyzed by an alkoxide or hydroxide base. Subsequent intramolecular Michael addition of the keto-enolate gives the observed tetrahydrofurans. Substitution at both the 2- and 4-positions of the gamma-hydroxyenone is tolerated; however, for 4-substituted gamma-hydroxyenones, selectivity issues arise due to the possibility of heterochiral or homochiral dimerizations. The major products were those with all contiguous groups trans.

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Section: Resultsmentioning

confidence: 73%

A Novel Synthesis of Functionalized Tetrahydrofurans by an Oxa-Michael/Michael Cyclization of γ-Hydroxyenones

et al. 2003

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“…In mixed fluoride-chloride electrolytes, the passivation current also depends on the fluoride ion concentration [110]. Fluoride ions are also found to influence porous aluminium oxide formation in organic acid media [111]. The corrosion of aluminium can be substantially suppressed by the addition of imide salts of Li-Tri fluoromethane sulfonate and employing LiPF 6 as the additives [112].…”

Section: Aluminiummentioning

confidence: 99%

Electrochemistry of metals and semiconductors in fluoride media

Noel

Suryanarayanan

2005

J Appl Electrochem

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The electrochemical surface transformations and diverse applications of a variety of metals and semiconductors in a wide range of fluoride media such as aqueous, non-aqueous media, liquid HF media, room temperature fluoride melts and molten fluoride media with a melting range covering 50-1000°C are reviewed. Nickel shows excellent corrosion resistance in the absence of water. The anodic performance of this metal in electrochemical perfluorination and NF 3 production is discussed. Compact carbon materials serve as anodes in fluorine generators. In high temperature melts, they perform as consumable anodes. Graphitic carbon undergoes intercalation/ de-intercalation process and related battery applications. Cu/CuF 2 couple is a good reference electrode. Pt and vitreous carbon materials are the inert electrodes of choice for electro analytical applications. Electrodeposition of Lithium as a non-dendritic uniform phase is important in Lithium metal based secondary batteries. High temperature fluoride melts are used in electro-deposition of valve metals such as Nb, Ta, and Ti. The stability and decomposition of fluoride complexes in these media are of interest.

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ChemInform Abstract: THE STRUCTURES OF DIMERS PRODUCED BY THE REDUCTIONS OF TRANS‐1,2‐DIBENZOYLETHYLENE

Inamura¹

1975

Chemischer Informationsdienst

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Cited by 3 publications

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A Novel Synthesis of Functionalized Tetrahydrofurans by an Oxa-Michael/Michael Cyclization of γ-Hydroxyenones

A Novel Synthesis of Functionalized Tetrahydrofurans by an Oxa-Michael/Michael Cyclization of γ-Hydroxyenones

Electrochemistry of metals and semiconductors in fluoride media

ChemInform Abstract: THE STRUCTURES OF DIMERS PRODUCED BY THE REDUCTIONS OF TRANS‐1,2‐DIBENZOYLETHYLENE

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