نتایج جستجو برای: butylated hydroxyl anisole

تعداد نتایج: 26481  

Journal: :Reactions 2022

Anisole is a straw-colored aromatic compound mainly used in making solvents, flavoring agents, perfumes, fuel additives, and the synthesis industries. Anisole, also known as methoxybenzene, synthesized from sodium phenoxide or phenol using various methylating agents. The use of dimethyl ether (DME) an alkylating agent seldom reported literature. Herein, we have anisole through O-alkylation proc...

2011
Narayanasamy Rajarajeswari

The present study was aimed at investigating the antioxidant activities of coumarin in streptozotocin (STZ)-nicotinamide (NA) induced type 2 diabetic rats. Diabetes was induced in experimental rats by a single intraperitoneal (i.p.) injection of STZ (45 mg/kg body weight (b.w.)), 15 min after the i.p. administration of NA (110 mg/kg b.w.). Diabetic rats were administered coumarin intragastrical...

2011
Comfort F. Ajibola Joseph B. Fashakin Tayo N. Fagbemi Rotimi E. Aluko

Enzymatic hydrolysate of African yam bean seed protein isolate was prepared by treatment with alcalase. The hydrolysate was further fractionated into peptide sizes of <1, 1-3, 3-5 and 5-10 kDa using membrane ultrafiltration. The protein hydrolysate (APH) and its membrane ultrafiltration fractions were assayed for in vitro antioxidant activities. The <1 kDa peptides exhibited significantly bette...

Journal: :Chemical communications 2013
Wei Xia Xiao-Yu Hu Yong Chen Chen Lin Leyong Wang

A novel and highly stable inclusion complex was formed between per-butylated pillar[6]arene and a ferrocenium cation, while the reduced form ferrocene only showed extremely weak binding affinity with per-butylated pillar[6]arene in organic solvents.

Journal: :Environmental science & technology 2007
Xiuping Zhu Shaoyuan Shi Junjun Wei Fanxiu Lv Huazhang Zhao Jiangtao Kong Qi He Jinren Ni

Electrochemical oxidation of some p-substituted phenols (p-nitrophenol, p-hydroxybenzaldehyde, phenol, p-cresol, and p-methoxyphenol) with electron-donating and -withdrawing substituents was studied to reveal the relationship between the structure and the electrochemical reactivity of p-substituted phenols using a boron-doped diamond electrode by voltammetry and bulk electrolysis. Voltammetric ...

Journal: :Organic & biomolecular chemistry 2005
Jörg Tellenbröker Dieter Barth Beate Neumann Hans-Georg Stammler Dietmar Kuck

Tetrahydroxyfenestrindane undergoes HPF6-catalyzed condensation with anisole, 2-methylanisole and the three dimethoxybenzenes to furnish several centrohexaindanes bearing oxyfunctionalization at the opposite ends of one of the three [2,2']-spirobiindane axes.

Journal: :Physical chemistry chemical physics : PCCP 2008
Rajesh K Raju Anitha Ramraj Mark A Vincent Ian H Hillier Neil A Burton

Carbohydrate-protein recognition has been studied by electronic structure calculations of complexes of fucose and glucose with toluene, p-hydroxytoluene and 3-methylindole, the latter aromatic molecules being analogues of phenylalanine, tyrosine and tryptophan, respectively. We use mainly a density functional theory model with empirical corrections for the dispersion interactions (DFT-D), this ...

Journal: :Journal of agricultural and food chemistry 2000
L R Fukumoto G Mazza

Methods for determining primary antioxidant activity were evaluated. A beta-carotene bleaching method and a free radical method using 2, 2-diphenyl-1-picrylhydrazyl (DPPH(*)) were modified to rapidly test samples for potential antioxidant activity. Malonaldehyde production in a linoleic acid emulsion system assayed by an HPLC method was also used to determine antioxidant and prooxidant activiti...

Journal: :Cancer research 1978
S K Liao S P Leong C M Sutherland P B Dent P C Kwong E T Krementz

4478 Antimutagenic Effects of 2(3)-tert-Butyl-4-hydroxy anisole and of Antimicrobial Agents. tivities and Protection against Mutagenic Metabo lites of Benzo(a)pyrene by Dietary Antioxidants.

2015
Talon M Kosak Heidi A Conrad Andrew L Korich Richard L Lord

One of the most well-known, highly utilized reagents for ether cleavage is boron tribromide (BBr3), and this reagent is frequently employed in a 1:1 stoichiometric ratio with ethers. Density functional theory calculations predict a new mechanistic pathway involving charged intermediates for ether cleavage in aryl methyl ethers. Moreover, these calculations predict that one equivalent of BBr3 ca...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید