کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5274447 1385511 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microwave-assisted synthesis of novel oligomeric rod-disc hybrids
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Microwave-assisted synthesis of novel oligomeric rod-disc hybrids
چکیده انگلیسی

Microwave-assisted syntheses of five new oligomeric liquid crystals (LC) are reported for the first time consisting of rufigallol-based core attached to which 8-cyanobiphenyl units via flexible alkyl spacers. The synthesis of the target compounds was challenging since classical reactions failed to produce these hybrids. Chemical structures of these hybrids were determined by 1H NMR, 13C NMR, IR, UV spectroscopy and elemental analysis. The thermotropic liquid crystalline properties of these new compounds were investigated by polarizing optical microscopy (POM), differential scanning calorimetry (DSC) and X-ray diffractometry (XRD).

Microwave-assisted green syntheses of five new oligomeric liquid crystals (LC) are reported consisting of rufigallol-based core attached to which 8-cyanobiphenyl units via flexible alkyl spacers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 53, Issue 47, 21 November 2012, Pages 6446-6450
نویسندگان
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