Theoretical investigation in derivative isoquinolin from the reaction between acetylenic ester in the presence of phenol
Publish place: The first national conference on new technologies in Chemistry & Chemical Engineering
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,088
This Paper With 7 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
NCNC01_466
تاریخ نمایه سازی: 14 شهریور 1392
Abstract:
Quantum mechanical calculations were undertaken for determination of the stability of the two isomers Z and E of compounds (2E)- methyl 3-(1-(3-tert-butyl-2-hydroxy-5-methylphenyl)isoquinolin-2(1H)-yl) acrylate .and (2E)-ethyl 3-(1-(3-tert-butyl-2-hydroxy- 5-methylphenyl)isoquinolin-2(1H)-yl) acrylate . Theresults showed that isomer E is more stable than Z . Results (theoretical calculations) were consistent with the experimental data arised from NMR spectroscopy.For assignment of the two Z and E isomers in compounds (2E)- methyl 3-(1-(3-tert-butyl-2- hydroxy-5-methylphenyl)isoquinolin-2(1H)-yl)acrylate .and (2E)-ethyl 3-(1-(3-tert-butyl-2-hydroxy- 5-methylphenyl)isoquinolin-2(1H)-yl) acrylate , first their structures, were optimized at the HF/6-31G(d,p) level of theory by Gaussian 98 program. The relative stabilization energies for both isomers have beencalculated at the HF/6-31G (d,p) and B3LYP/6- 311++G (d,p) levels. Further calculations in the gas phase are also non-polar and polar solvents. Thenumbers of critical points and intramolecular hydrogen bonds have been recognized as well as the charge of atoms that were constructed on the twoisomers. In addition, Jx-y , the values of proton and carbon coupling constant, and also chemical shifts (δHiso,δCiso) have been calculated at the mentionedlevel using the SPINSPIN keyword.
Keywords:
Quantum mechanical , stability , isomer Z , isomer E Isoquinolines , hydrogen bond , AIM , NMR , NPA
Authors
Susan Erfani
Department of Chemistry, The University of Sistan and Baluchestan,
Sayyed Mostafa Habibi-Khorassani
Department of Chemistry, The University of Sistan and Baluchestan,
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :