Green synthesis of 3-(1-naphthyl), 4-methyl-3-(1-naphthyl) coumarins and 3-phenylcoumarins using dual-frequency ultrasonication
نویسندگان
چکیده
منابع مشابه
TRANSFORMATION OF 2-BENZOYLAMINO-1-(?-NAPHTHYL)PROPAN-1-OL INTO 4-METHYL-1-PHENYL BENZO[f] ISOQUINOLINE RATHER THAN ITS 3-SUBSTITUTED ISOMER
The necessary conditions to transform hydroxyamide (1) and 2-oxazolines (2, 3) into 3- or 4-methyl benzo[f] isoquinolines (4, 5) has been established. The mechanism of these reactions has been proposed claiming the existence of the protonated 2-oxazoline (6) and the styrylamides (7) as intermediates.
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The title compound, C(19)H(16)N(2)O(4), is of inter-est as a precursor to biologically active substituted quinolines and related compounds. The dihedral angle between the naphthalene ring system and the benzene ring is 81.9 (1)°. The crystal structure is stabilized by N-H⋯O inter-molecular hydrogen bonds, linking the mol-ecules into pairs around a center of symmetry. The crystal structure is fu...
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In the title compound, C(17)H(20)N(2)O(3), the morpholine ring is in a slightly distorted chair form. The crystal structure is stabilized by an inter-molecular O-H⋯O hydrogen bond between the H atom of the hydroxyl group and the O atom of a neighbouring carbonyl group. A weak inter-molecular C-H⋯π inter-action is also present.
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The crystal and molecular structures of the title compounds, ethyl 4-(4-hydroxyphenyl)-6-(6-methoxy-2-naphthyl)-2-oxocyclohex-3-ene-1-carboxylate (I) and ethyl 4-(3-bromophenyl)-6-(6-methoxy-2-naphthyl)-2-oxocyclohex-3-ene-1-carboxylate (II), are reported and confirmed by single crystal X-ray diffraction data. Compound (I), C26H24O5, crystallizes from a methanol solution in the monoclinic C2/c ...
متن کاملtransformation of 2-benzoylamino-1-(?-naphthyl)propan-1-ol into 4-methyl-1-phenyl benzo[f] isoquinoline rather than its 3-substituted isomer
the necessary conditions to transform hydroxyamide (1) and 2-oxazolines (2, 3) into 3- or 4-methyl benzo[f] isoquinolines (4, 5) has been established. the mechanism of these reactions has been proposed claiming the existence of the protonated 2-oxazoline (6) and the styrylamides (7) as intermediates.
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ژورنال
عنوان ژورنال: Green Processing and Synthesis
سال: 2020
ISSN: 2191-9550,2191-9542
DOI: 10.1515/gps-2020-0042