(1E,3E)-1,4-Bis(4-methoxyphenyl)buta-1,3-diene
نویسندگان
چکیده
The title compound, C(18)H(18)O(2), which exhibits blue emission in the solid state, is an inter-mediate in the preparation of liquid crystals and polymers. The mol-ecule is located on an inversion centre. In the crystal, mol-ecules are arranged in a herringbone motif.
منابع مشابه
Fluorine in crystal engineering: photodimerization of (1E,3E)-1-phenyl-4-pentafluorophenylbuta-1,3-dienes in the crystalline state.
(1E,3E)-1,4-Diphenylbuta-1,3-diene is photostable in the crystalline state, while fluoro-substitution induces reactivity. Crystals of (1E,3E)-1-pentafluorophenyl-4-(4-methoxyphenyl)buta-1,3-diene 1, (1E,3E)-1-pentafluorophenyl-4-(4-methylphenyl)buta-1,3-diene 2 and (1E,3E)-l-pentafluorophenyl-4-phenylbuta-1,3-diene 3 undergo double [2+2] photodimerization topochemically to yield anti head-to-ta...
متن کاملFluorescence probe properties of intramolecular charge transfer diphenylbutadienes in micelles and vesicles.
This paper reports absorption and fluorescence spectral studies of methyl 4-[(1E,3E)-4-phenylbuta-1,3-dienyl]benzoate (1), N,N-dimethyl-N-[4-[(1E,3E)-4-phenylbuta-1,3-dienyl]phenyl]amine (2), methyl 4-[(1E,3E)-4-[4-(dimethylamino)phenyl]buta-1,3-dienyl]benzoate (3) and 1-methyl-4-[(1E,3E)-4-[4-methoxyphenyl]buta-1,3-dienyl]benzoate (4) in homogeneous media of 1,4-dioxane and 1,4-dioxane-water b...
متن کامل1-(Triethoxysilyl)buta-1,3-dienes—New Building Blocks for Stereoselective Synthesis of Unsymmetrical (E,E)-1,4-Disubstituted 1,3-dienes
A convenient methodology for the highly stereoselective synthesis of unsymmetrical (1E,3E)-1,4-disubstituted 1,3-dienes based on palladium-catalyzed Hiyama cross-coupling reaction of 1-(triethoxysilyl)-substituted buta-1,3-dienes with aryl iodides is reported.
متن کامل1,4-Bis(4-bromo-2,6-diisopropylphenyl)-1,4-diazabuta-1,3-diene
The molecule of the title compound, C(26)H(34)Br(2)N(2), lies on a crystallographic inversion center and hence the two imine groups are s-trans. The dihedral angle between the central 1,4-diaza-buta-1,3-diene unit and the attached substituted phenyl ring is 88.4 (7)°. The structure features a C-H⋯N close contact. The crystal selected for this study proved to be a non-merohedral twin with a mino...
متن کاملReversible intramolecular photocycloaddition of a bis(9-anthrylbutadienyl)paracyclophane – an inverse photochromic system. (Photoactive cyclophanes 5)
The title compound, 4,13-bis[(1E,3E)-4-(9-anthracenyl)buta-1,3-dienyl][2.2]paracyclophane (2), prepared in 35% overall yield from [2.2]paracyclophane, absorbs light at lambda(max) = 400 nm with a tail down to 480 nm. By irradiation into this band, 2 generates a single photoproduct, 4, whose absorption maximum is situated at 306 nm. The starting material is recovered by irradiation at 306 nm or ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010