نتایج جستجو برای: amino benzoic acid

تعداد نتایج: 819082  

Journal: :Nanoscale 2013
Latifah Jasmani Samuel Eyley Rachel Wallbridge Wim Thielemans

Pyridinium-grafted-cellulose nanocrystals were prepared by a simple one-pot reaction using 4-(1-bromoethyl/bromomethyl)benzoic acid, pyridine and cellulose nanocrystals (CNCs). The grafting consists of an esterification reaction between 4-(1-bromoethyl/bromomethyl)benzoic acid and CNCs and a nucleophilic attack on the C-Br bond of 4-(1-bromoethyl/bromomethyl)benzoic acid by pyridine. This react...

2012
Amir Sada Khan Hizbullah Khan Asma Nasrullah Saeed Ahmad Farman Ullah Khan Syed Badshah

This article deals with the study of antiwear and antifriction properties of bitter rapeseed oil and sesame oil and their blends containing numerous amounts of benzoic acid at variable temperatures. The experimental results indicate that bitter rapeseed oil exhibits good antiwear and antifriction properties as compared to sesame oil under the same experimental conditions. The addition of benzoi...

2008
Yi Nie

The title compound, C(16)H(17)N(3)O(2), was synthesized by the reaction of 4-dimethyl-amino-benzaldehyde with 3-hydroxy-benzoic acid hydrazide in methanol. The dihedral angle between the two benzene rings in the mol-ecule is 9.2 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular O-H⋯O, O-H⋯N and N-H⋯O hydrogen bonds, forming layers parallel to the bc plane.

2010
Hai Feng Ya Jian Zhou Bin Tao Xing Yang Guang Qi Zheng Wu

In the title compound, C(11)H(17)ClNO(+)·C(7)H(5)O(2) (-), obtained by the reaction of chlorprenaline {or 1-(2-chlorophenyl)-2-[(1-methylethyl)amino]ethanol} and benzoic acid, the chlorprenaline is twisted moderately [C-C-C-C torsion angle = -76.00 (17)°] compared with related compounds. The mol-ecules as usual form dimers. In the crystal structure, the two components are connected by classical...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم 1391

سنتز پلیمرهای کوئوردیناسیونی جدید از لیگاندهای 2-آمینو نیکوتینیک اسید، 2-کینولین کربوکسیلیک اسید، 2-پیرازین کربوکسیلیک اسید در ابعاد توده، با روش گرایان دمایی و با استفاده از شاخه ی جانبی انجام شده است، این پلیمرها توسط روش طیف سنجی ir شناسایی و پایداری گرمایی آن ها توسط تجزیه های وزن سنجی حرارتی (tga) و تجزیه ی گرمایی تفاضلی (dta) بررسی شده است. در ادامه، ساختار این ترکیبات توسط بلورنگاری پرتو...

Journal: :Journal of bacteriology 1947
R J Fitzgerald F Bernheim

Benzoic acid and some related compounds are able to increase the metabolism of mycobacteria (Bernheim, 1941). The oxygen uptake and carbon dioxide production of the pathogenic strains H-37 and B, are greatly accelerated when small amounts of benzoic or salicylic (o-hydroxybenzoic) acid are added to the bacterial suspensions. Other hydroxybenzoic acids as well as aminobenzoic acids are without e...

2014

There are many difficulties in the purification of raw components and products. However, researchers are seeking better ways for purification. One of the recent methods is extraction using supercritical fluids. In this study, the phase equilibria of benzoic acid -supercritical carbon dioxide system were investigated. Regarding the phase equilibria of this system, the modeling of solid-supercrit...

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

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