2,5-Bis[2-(4-methylphenyl)ethynyl]benzyl methacrylate
نویسندگان
چکیده
In the title bis-tolane derivative, C(29)H(24)O(2), the central benzene ring forms dihedral angles of 29.12 (9) and 26.46 (9)° with the other two benzene rings. The dihedral angle between two terminal benzene rings is 55.58 (8)°.
منابع مشابه
Bis[(4-methylphenyl)ethynyl] telluride
The tellurium atom in the title bis-ethynyl telluride, Te(C(9)H(7))(2) or C(18)H(14)Te, is located on a crystallographic twofold axis, the C-Te-C angle being 92.23 (15)°. The dihedral angle between the rings is 87.27 (7)°. In the crystal structure, mol-ecules are connected in chains parallel to the b axis and mediated by C-H⋯π inter-actions.
متن کامل{2-[(Dimethylamino)methyl]phenyl}bis(4-methylphenyl)bismuthane
The title compound, [Bi(C(7)H(7))(2)(C(9)H(12)N)], was obtained by treating chlorodi(p-tol-yl)bis-muthane with o-lithio-N,N-dimethyl-benzyl-amine. An intra-molecular Bi⋯N nonbonding inter-action is observed in the distorted trigonal triaryl-bis-muth coordination of the title compound.
متن کامل2,2,6-Trimethyl-5-[2-(4-methylphenyl)ethynyl]-4H-1,3-dioxin-4-one
The 1,3-dioxin-4-one ring in the title compound, C(16)H(16)O(3), is in a half-boat conformation with the quaternary O-C(CH(3))(2)-O atom lying 0.546 (1) Å out of the plane defined by the remaining five atoms. The crystal structure is consolidated by C-H⋯O contacts that lead to supra-molecular layers.
متن کامل2,5-Bis(4-methylphenyl)-4-oxopentanoic acid
The title compound, C(19)H(20)O(3), was obtained from 1,4-bis-(4-methyl-phen-yl)but-3-yn-2-one in the presence of carbon monoxide by Ni(CN)(2) catalysis in a basic aqueous medium. Inter-molecular O-H⋯O hydrogen bonds lead to the formation of hydrogen-bonded carb-oxy-lic acid dimers [graph-set motif R(2) (2)(8)]. Weak C-H⋯O hydrogen bonds between neighbouring dimers further extend the structure ...
متن کاملA practical route to partially protected pyrrolidines as precursors for the stereoselective synthesis of alexines.
Either 3-O-benzoyl- (2a) or 3-O-benzyl-1,2-O-isopropylidene-beta-D-fructopyranose (2b) were regioselectively O-benzylated at C-4 to give 4a and 4b, respectively, which were transformed into 5-azido-3-O-benzoyl-4-O-benzyl- (6a) and 5-azido-3,4-di-O-benzyl-5-deoxy-1,2-O-isopropylidene-alpha-L-sorbopyranose (6b) by nucleophilic displacement of the corresponding 5-O-mesyl derivatives 5a and 5b by s...
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011