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Ethyl 4-acetyl-5-oxo-3-phenyl-hexa-noate.

ABSTRACT: The reaction of ethyl 3-bromo-3-phenyl-propano-ate with pentane-2,4-dione, in the presence of palladium(II) acetate and triphenyl-phosphine, in dimethyl-formamide, unexpectedly gave the title product, C(16)H(20)O(4). The mol-ecule contains one chiral C atom but the crystal is racemic. In the crystal, neighboring mol-ecules form a chain along [100] through three weak C-H⋯O inter-actions. Furthermore, a double-stranded structure is formed through weak C-H⋯O inter-actions between two parallel chains.

SUBMITTER: Wang H

PROVIDER: S-EPMC3099969 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(S)-(-)-1-Phenyl-ethanaminium hexa-noate.

Project description:A binary mixture of (S)-(-)-1-phenyl-ethanamine and hexa-noic acid was allowed to react to form the title salt, C8H12N(+)·C6H11O2(-). This crystal contains a 1:1 stoichiometric mixture of the acid- and amine-derived species and displays a chiral structure with N-H⋯O hydrogen-bonded chains propagating along the c-axis direction.

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Ethyl 2,7,7-trimethyl-5-oxo-4-phenyl-1,4,5,6,7,8-hexa-hydro-quinoline-3-carboxyl-ate.

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Benzyl-ammonium hexa-noate.

Project description:A binary mixture of benzyl-amine and hexa-noic acid has been reacted to form the title salt, C(7)H(10)N(+)·C(6)H(11)O(2) (-). This crystal has a 1:1 stoichiometry of acid- and amine-derived species which contrasts with other related species which can have a number of other integer ratios of acid and amine components. The diffraction data indicate complete transfer of a proton from the acid to the amine to give the salt, comprising a cation and anion combination, with the formation of three hydrogen bonds around each ammonium group. This contrasts with other related species.

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2-Oxo-2-phenyl-ethyl benzoate.

Project description:In the title compound, C(15)H(12)O(3), the terminal phenyl rings make a dihedral angle of 86.09?(9)° with each other. In the crystal, a pair of inter-molecular C-H?O hydrogen bonds link the mol-ecules, forming a dimer with an R(2) (2)(10) ring motif.

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Ethyl (4aR*,7S*,8S*,8aS*)-1-oxo-7-phenyl-3,4,4a,7,8,8a-hexa-hydro-1H-isochromene-8-carboxyl-ate.

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Project description:In the title compound, C(17)H(19)NO(5), the cyclo-hexene ring is in a half-chair conformation and the isoxazole ring in an envelope conformation with the N atom as the flap. The C atoms in the 4- and 6-positions are of the same absolute configuration, whereas the C atom in the 5-position is of the opposite configuration, i.e. (4S*,5R*,6S*). The methyl fragment of the eth-oxy-carbonyl group at position 5 is disordered over two sets of sites in a 0.60:0.40 ratio. The crystal packing displays inter-molecular N-H?O and O-H?O hydrogen bonds.

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Ethyl N-(2-benzoyl-3-oxo-3-phenyl-propano-yl)carbamate.

Project description:In the title compound, C(19)H(17)NO(5), the dihedral angle between the phenyl groups is 79.55?(15)°. The terminal eth-oxy group is disordered over two orientations in a 0.873?(6):0.127?(6) ratio. In the crystal, mol-ecules are linked by N-H?O and C-H?O hydrogen bonds into [001] chains which incorporate R(1) (2)(6) loops. A very weak C-H?? contact also occurs.

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