Copolymerization of Optically Active Ethyl 2-Methyl-2-ethyl-2-butenoate with Vinyl Acetate
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چکیده
منابع مشابه
Ethyl 2-(2-methyl-1H-benzimidazol-1-yl)acetate
A new benzimidazole compound, C(12)H(14)N(2)O(2), has been synthesized by the reaction of 2-methyl-1H-benzimidazole and ethyl 2-bromo-acetate. In the crystal structure, weak inter-molecular C-H⋯N hydrogen bonds link the mol-ecules into chains. π⋯π Contacts (centroid⋯centroid distance = 3.713 Å) are observed. A C-H⋯π inter-action is also present. The N-C-C-O torsion angle is 178.4 (2)°.
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In the mol-ecule of the title compound, C(17)H(17)NO(5)S, the two aromatic rings are oriented at an angle of 30.13 (10)°. The ethyl acetate group assumes an extended conformation. Mol-ecules are linked into C(7) chains running along the a axis by inter-molecular C-H⋯O hydrogen bonds, and the chains are crosslinked via C-H⋯π inter-actions, with the sulfonyl-bound phenyl ring acting as an acceptor.
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The title compound, C(12)H(14)N(2)O(3)S, adopts a cis-trans geometry of the thio-urea group and is stabilized by intra-molecular hydrogen bonds between the carbonyl O atoms and the H atom of the thio-amide group and by a C-H⋯S interaction. Mol-ecules are linked by two inter-molecular hydrogen bonds (C-H⋯O and N-H⋯O), forming a one-dimensional chain parallel to the c axis.
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1956
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.29.287