منابع مشابه
N-Amino-imidazolin-2-one Peptide Mimic Synthesis and Conformational Analysis
Base-promoted 5-exo-dig cyclizations of aza-propargylglycinamides provided N-amino-imidazolin-2-one peptide mimics, which exhibited turn geometry in X-ray crystallographic and NMR spectroscopic analyses. Sonogashira coupling prior to cyclization afforded N-amino-imidazolin-2-ones with diverse 4-position aromatic substituents with potential to serve as Phe and Trp mimics.
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In the title compound, C11H14OS, all non-H atoms are essentially coplanar, with a mean deviation of 0.023 Å. In the crystal, centrosymmetrically related mol-ecules are weakly connected into dimers by pairs of C-H⋯O inter-actions. The dimers are further linked along the a axis by weak C-H⋯π and C-H⋯S inter-actions.
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History has had its periods of magnificent excess, when vast amounts of human effort were devoted to cultural projects that transcended the necessities of survival and commerce. Obvious examples begin with the construction of the great pyramids. Much later, Europe's cathedrals were the ultimate commitment of society's surplus energy to expressions of the spirit. The explorations of the remote r...
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In the title compound, C(12)H(15)NO(3), the ethoxy-benzyl ring plane forms a dihedral angle of 60.3 (4)° with the mean plane of the oxazolidine ring. The mol-ecules are linked through N-H⋯O hydrogen bonds into a chain running in the b direction.
متن کامل2-(4-Chlorophenyl)-6-methoxychroman-4-one
In the title mol-ecule, C(16)H(13)Cl O(3), the two aromatic rings form a dihedral angle of 65.3 (1)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers, which are further packed into columns propagating in [100] by weak C-H⋯π inter-actions.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2004
ISSN: 1600-5368
DOI: 10.1107/s1600536804005756