Ethyl 2-amino-4-methylthiophene-3-carboxylate
نویسندگان
چکیده
منابع مشابه
Ethyl 2-(3-amino-4-hydroxyphenyl)acetate
The asymmetric unit of the title compound, C(10)H(13)NO(3), contains two crystallographically independent mol-ecules with different conformations of the eth-oxy-carbonyl groups; the terminal C-C-O-C torsion angles in the two mol-ecules are 83.6 (6) and -171.1 (3)°, resulting in twisted and straight chain conformations, respectively. The crystal structure is stabilized by inter-molecular N-H⋯O, ...
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In the mol-ecule of the title compound, C(11)H(12)ClN(3)O(3), the five membered ring adopts an envelope conformation. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.
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The asymmetric unit of the title compound, C(10)H(13)NO(2), contains two mol-ecules which are linked via an N-H⋯N hydrogen bonds to form a dimer. These dimers are further linked via N-H⋯O inter-molecular hydrogen bonds.
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An efficient procedure to obtain the new compound 1a from ethyl acetoacetate (2a), NBS and N,N′-diethylthiourea (4a) was reported. In comparison with the traditional method to synthesize its analogues, this efficient, catalyst-free, and one-pot synthetic method is facile. The work-up procedure is easy and gives the pure target compound under milder reaction conditions in a relatively high yield...
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ژورنال
عنوان ژورنال: IUCrData
سال: 2021
ISSN: 2414-3146
DOI: 10.1107/s2414314621003515