نتایج جستجو برای: alkyl group

تعداد نتایج: 991429  

2012
H. F. Widing - L. S. Levitt

H a r r y F . W i d i n g a n d L e o n a r d S . L e v i t t Department of Chemistry, College o f Science, The University o f Texas at El Paso, El Paso, Texas 79968 Z. Naturforsch. 34b , 321 -326 (1979) ; received August 29, 1978 Alkyl Induct ive Ef fect , Induct ive Substituent Constants of Alkyl Groups Three models o f alkyl groups, " d e r e a l i z a t i o n " , " throughthe -bond" , and "...

Journal: :Helvetica Chimica Acta 2022

Surface organometallic chemistry (SOMC) represents a unique synthetic platform for the preparation of model heterogeneous catalysts resembling those broadly applied in industry. SOMC techniques usually rely on grafting tailored molecular precursors onto surface OH groups oxide supports. The development such and understanding their reactivity with supports are therefore crucial well-defined spec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشکده علوم پایه 1388

چکیده ندارد.

Journal: :Chemical Science 2023

The synthesis of a range PBP supported palladium pincer complexes with different alkyl ligands is described. rates CO 2 insertion into the group are quantified and rationalized based on identity ligand.

Journal: :Biochemical pharmacology 2014
Sufang Wang Bin Wan Lianying Zhang Yu Yang Liang-Hong Guo

Organophosphate esters (OPEs), a major group of organophosphorus flame retardants, are regarded as emerging environmental contaminants of health concern. Amino acid decarboxylases catalyze the conversion of amino acids into polyamines that are essential for cell proliferation, hypertrophy and tissue growth. In this paper, inhibitory effect of twelve OPEs with aromatic, alkyl or chlorinated alky...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2012
Yuling Zhao Xiaomin Liu Jianji Wang Suojiang Zhang

In recent years, great progress has been made in the dissolution of cellulose with ionic liquids (ILs). However, the mechanism of cellulose dissolution, especially the role the IL cation played in the dissolution process, has not been clearly understood. Herein, the mixtures of cellulose with a series of imidazolium-based chloride ionic liquids and 1-butyl-3-methyl pyridinium chloride ([C(4)mpy...

Journal: :The journal of physical chemistry. B 2005
Kirsten L Genson Jason Holzmuller Ovette F Villacencio Dominic V McGrath David Vaknin Vladimir V Tsukruk

Four generations of monodendrons with multiple dodecyl alkyl tails (AA-N, N representing number of alkyl tails from 1 to 8), an azobenzene spacer group, and a carboxylic acid polar head have been studied at the air-water and air-solid interface using AFM, GIXD, X-ray reflectivity, and UV-vis spectrometry. The one and two tail molecules formed orthorhombic lateral packing with long-range intramo...

Journal: :Indian journal of biochemistry & biophysics 2002
N B Barhate Madhava C Reddy P Srinivas Reddy R D Wakharkar P Reddanna

A series of benzyl propargyl ethers were synthesized and tested as inhibitors of 5-lipoxygenase, the key enzyme involved in leukotriene biosynthesis. Among these, optimum activity was displayed by 1-(2-heptynyloxymethyl) benzene 12 (IC50 1.2 microM). Addition of carboxyl group at the end of the alkyl side chain attached to the acetylenic group abolished the inhibition. Selective reduction of th...

2017
Takashi Nakamura

My group developed a simple method to prepare copper nitride fine particles from copper carboxylate in a solvent of long-chain alcohols without the use of high temperatures or high pressures. By selecting copper acetate or copper decanoate as the copper source, my group demonstrated that the morphology of the copper nitride fine particles varied between cubic and plate-like, respectively. Altho...

2015
Daniel J. Weix

Cross-electrophile coupling, the cross-coupling of two different electrophiles, avoids the need for preformed carbon nucleophiles, but development of general methods has lagged behind cross-coupling and C-H functionalization. A central reason for this slow development is the challenge of selectively coupling two substrates that are alike in reactivity. This Account describes the discovery of ge...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید