145073-42-3Relevant articles and documents
Gold-Catalyzed C(sp2)?C(sp) Coupling by Alkynylation through Oxidative Addition of Bromoalkynes
Yang, Yangyang,Schie?l, Jasmin,Zallouz, Sirine,G?ker, Verena,Gross, Jürgen,Rudolph, Matthias,Rominger, Frank,Hashmi, A. Stephen K.
supporting information, p. 9624 - 9628 (2019/07/05)
A gold(I)-catalyzed cascade cyclization–alkynylation of allenoates using alkynyl bromide to generate β-alkynyl-γ-butenolides was investigated. Whereas alkynyl iodides afforded significant amounts of the homo-coupling of two lactone units, alkynyl bromides led to a selective reaction, and a broad functional group tolerance was observed. Under the optimized reaction conditions, it was possible to directly synthesize a large range of β-alkynyl-γ-butenolides in moderate to good yields without the need for any external oxidant.
POLYMERIZABLE COMPOUND AND OPTICAL ANISOTROPIC MATERIAL
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Paragraph 0139; 0145, (2016/10/08)
PROBLEM TO BE SOLVED: To provide a polymerizable compound showing high storage stability without inducing precipitation of crystals or the like when added to a polymerizable composition, to provide a polymerizable composition containing the above polymerizable compound, which gives uniform homeotropic alignment when a polymerized product is obtained by polymerizing the polymerizable composition, and to provide a polymer having a high surface hardness obtained by polymerizing the above polymerizable composition, and an optical anisotropic material using the polymer. SOLUTION: The following compound is provided: the compound includes at least one mesogen group, at least one reactive group that is directly bonded to the mesogen group or bonded via a spacer group and/or a connecting group, and at least one terminal group directly bonded to the mesogen group and having no reactive group, and has one carbon-carbon triple bond in the terminal group having no reactive group. Also disclosed are: a composition comprising the above compound; a polymer obtained by polymerizing the composition; and an optical anisotropic material using the polymer. COPYRIGHT: (C)2015,JPOandINPIT
POLYMERIZABLE COMPOUND AND OPTICAL ANISOTROPIC MATERIAL
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Paragraph 0117; 0118; 0123, (2018/01/02)
PROBLEM TO BE SOLVED: To provide a polymerizable compound that exhibits high storage stability and great refractive index anisotropy without inducing crystallization or the like when added to a polymerizable composition, and a polymerizable composition containing the above polymerizable compound, which prevents disturbance in orientation when a lens-shaped polymer obtained by polymerizing the polymerizable composition is heated, and to provide a polymer obtained by polymerizing the polymerizable composition, and an optical anisotropic material using the polymer. SOLUTION: The present invention discloses a compound represented by general formula (I), and also discloses a polymerizable composition and polymerizable liquid crystal composition each containing the above compound, a polymer obtained by polymerizing the composition, and an optical anisotropic material using the polymer. COPYRIGHT: (C)2015,JPO&INPIT