The use of BrCCl3-PPh3 in Appel type transformations to esters, O-acyloximes, amides, and acid anhydrides

Autor: Nuha al Soom, Bernhard Bugenhagen, Mariam Al-Azani, Yosef Al Jasem, Mazen al-Sulaibi, Thies Thiemann, Bassam al Hindawi

Publikováno v: Comptes Rendus Chimie. 19:921-932

Esters, acyloximes, amides and acid anhydrides have been prepared from the respective carboxylic acids, oximes, amines and alcohols by the use of the reagent combination BrCCl3-PPh3. The reactions obviate the handling acyl halides or more aggressive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16acc538fec0ba2d95876c69fa9c7da6
https://doi.org/10.1016/j.crci.2016.04.004

Two Ways of Preparing Benzonitriles Using BrCCl3–PPh3 as the Reagent

Autor: Mariam Al-Azani, Yosef Al Jasem, Noha Ashraf El-Khwass, Hifsa Pervez Butt, Thies Thiemann, Mohamed Saeed Barkhad, Bassam al Hindawi, Mona Al Khazali

Publikováno v: Journal of Chemical Research. 38:80-84

Benzamides were converted into benzonitriles with BrCCl3–PPh3–Et3N in CH2Cl2 in an Appel-type reaction. Benzaldoximes could be transformed to benzonitriles under identical conditions. It was found that the reaction system BrCCl3–(2 equiv.)PPh3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f633768dab3982466b7f4ab813914b28
https://doi.org/10.3184/174751914x13891131118347

Crystal structure of 3-(2,5-dimethoxyphenyl)propionic acid

Autor: Mariam Al-Azani, Bernhard Bugenhagen, Thies Thiemann, Yosef Al Jasem

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 5, Pp o337-o338 (2015)
Acta Crystallographica Section E: Crystallographic Communications

In the crystal of the title compound, C11H14O4, the aromatic ring is almost coplanar with the 2-position methoxy group with which it subtends a dihedral of 0.54 (2)°, while the 5-position methoxy group makes a corresponding dihedral angle of just 5.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56e5d8c8fd77bf75bdf1d19f844f4ee4
http://scripts.iucr.org/cgi-bin/paper?S2056989015007641

Molecular conformational analysis, vibrational spectra, NBO, NLO analysis and molecular docking study of bis[(E)-anthranyl-9-acrylic]anhydride based on density functional theory calculations

Autor: Y. Sheena Mary, Santosh Kumar Srivastava, Javeed Ahmad War, Mariam Al-Azani, K. Raju, C. Yohannan Panicker, Abdulaziz A. Al-Saadi, Thies Thiemann, C. Van Alsenoy

Publikováno v: Spectrochimica acta: part A: molecular and biomolecular spectroscopy

FT-IR and FT-Raman spectra of bis[(E)-anthranyl-9-acrylic]anhydride were recorded and analyzed. The conformational behavior is also investigated. The vibrational wave numbers were calculated using density functional theory (DFT) quantum chemical calc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51076df11551575ffa72a34c675fdb4c
https://pubmed.ncbi.nlm.nih.gov/26143327

Fluoren-9-one oxime

Autor: Mariam Al-Azani, Bernhard Bugenhagen, Thies Thiemann, Yosef Al Jasem

Publikováno v: Acta Crystallographica Section E: Structure Reports
Acta Crystallographica Section E, Vol 70, Iss 3, Pp o265-o265 (2014)

In the title molecule, C13H9NO, the fluorene system and the oxime group non-H atoms are essentially coplanar, with a maximum deviation from the fluorene mean plane of 0.079 (2) Å for the oxime O atom. A short intramolecular C—H...O generates anS(6

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11876c50992f858932d3d24ad6356789
https://pubmed.ncbi.nlm.nih.gov/24764980