کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1402660 1501753 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural study of the acylation products of persubstituted para-nitrosophenols
ترجمه فارسی عنوان
مطالعه ساختاری محصولات آکریلاسیون پارا-نیتروسفنول های اصلاح شده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Acylation of potassium 2,6-di(alkoxycarbonyl)-3,5-dimethyl-4-nitrosophenolate with acetic anhydride and benzoyl chloride gave previously unknown 10 derived acyl compounds. 1H NMR spectroscopy and X-ray diffraction data have been used to show that the oxygen atom of the nitroso group undergoes acylation to form the quinoid products. X-ray powder crystal structure analysis of 1-acetoxymino-3,5-di(methoxycarbonyl)-2,6-dimethyl-1,4-benzoquinone, 1-acetoxymino-3,5-di(ethoxycarbonyl)-2,6-dimethyl-1,4-benzoquinone and 1-benzoyloxymino-3,5-di(propoxycarbonyl)-2,6-dimethyl-1,4-benzoquinon revealed a planar structure of the molecules with quinoid ring as the central moiety. Alkyloxycarbonyl groups rotate in the range 94-101° relative to the plane of the molecule. Typical hydrogen bonds are absent. Molecules fill the unit cell following the closest packing principle in the form of the columns. The 1H NMR spectroscopic data indicates that the direction of acylation and type of structure for the other members of the series of the studied compounds are the same.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1063, 24 April 2014, Pages 341-350
نویسندگان
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