نتایج جستجو برای: catalyzed oxidation

تعداد نتایج: 156266  

Journal: :Catalysis Science & Technology 2021

Side-chain/ring oxygenated product ratio increases upon decreasing the benzylic bond dissociation energy in oxidation of alkylaromatics with H2O2 catalyzed by an imine-based iron complex.

2003
T. G

Pregnancy-related changes in oxidative metabolism of several xenobiotics including pesticides were examined in the hepatic microsomes of CD, mice. The effect of pregnancy on hepatic microsomal cytochrome P-450~catalyzed substrate oxidation was found to be dependent upon the type of reaction examined. Not all substrates undergoing the same reaction showed identical changes during pregnancy. Thos...

Journal: :Green chemistry : an international journal and green chemistry resource : GC 2010
Xuan Ye Martin D Johnson Tianning Diao Matthew H Yates Shannon S Stahl

The synthetic scope and utility of Pd-catalyzed aerobic oxidation reactions has advanced significantly over the past decade, and these reactions have potential to address important green-chemistry challenges in the pharmaceutical industry. This potential has been unrealized, however, because safety concerns and process constraints hinder large-scale applications of this chemistry. These limitat...

Journal: :Chemical communications 2010
Zuo Xiao Jiayao Yao Yuming Yu Zhenshan Jia Liangbing Gan

Repeated acid catalyzed epoxide opening and oxidation of the resulting diol with diacetoxyiodobenzene led to two 10-membered orifices on C(60) cage.

Journal: :Chemical communications 2009
Shigeki Mori Masato Takubo Kazuya Makida Takayoshi Yanase Satoka Aoyagi Tomohiro Maegawa Yasunari Monguchi Hironao Sajiki

A simple, efficient, and environmentally-friendly heterogeneous Ru/C-catalyzed oxidation of secondary and primary alcohols without additives under an atmosphere of oxygen has been established.

Journal: :Applied and environmental microbiology 1991
G de la Fuente F Perestelo A Rodríguez-Pérez M A Falcón

Cell suspensions of Serratia marcescens catalyzed the oxidation of aromatic aldehydes into the corresponding acids in high yield under mild conditions.

Journal: :Chemical communications 2009
Qi-Zhi Ren Yuan Yao Xiao-Jian Ding Zong-Sheng Hou De-Yue Yan

Water-soluble porphyrins can be phase transferred by the hyperbranched multiarm copolymer PEI-PZLys; good catalytic activities and recyclabilities were observed for oxidation catalyzed by the encapsulated porphyrins.

Journal: :Molecules 2007
Karim Asadolah Majid M Heravi Rahim Hekmatshoar Soma Majedi

A facile, selective and high yielding bis(trimethylsilyl) chromate (BTSC) catalyzed selective oxidation of alcohols to aldehydes and ketones with periodic acid is reported.

2008
B. Karimi A. Zamani

The use of palladium catalysts for the oxidation of alcohols to aldehydes and ketones in the presence of various types of reoxidants is well known. Recently, the advantages of using molecular oxygen as the oxidant in the Pd-catalyzed oxidation of alcohols have been explored. The aim of this review is to provide an overview on the most important homogeneous palladiumcatalyzed aerobic oxidation o...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2007
Sadaaki Tamura Teruhiko Nitoda Isao Kubo

Salicylic acid slightly inhibited the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase noncompetitively without being oxidized. In contrast, 4-hydroxybenzoic acid did not inhibit this enzymatic oxidation if a longer reaction time was observed, although it suppressed the initial rate of the oxidation to a certain extent. Neither acid showed noticeable effects o...

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