نتایج جستجو برای: benzyl degradation

تعداد نتایج: 158975  

2000
Peter A. Williams RHEINALLT M. JONES

The areCBA genes in Acinetobacter sp. strain ADP1, determining growth on benzyl alkanoates, are shown to be transcribed as a single operon and regulated by areR, which encodes a regulatory protein of the NtrC/XylR family. Assays of the Are enzymes and of two insertions of lacZ as a reporter gene have shown that the operon is induced by benzyl acetate, benzyl alcohol, and benzaldehyde, as well a...

2015
Rebecca M. Triano Michele L. Paccagnini Amy M. Balija

Several closely related branched structures related to the well-established benzyl ether dendrimers were tested as hosts for the removal of pyrene from water. Fluorescence spectroscopy based complexation studies showed that the first generation benzyl ether dendrimers removed on average 94 % of pyrene from a saturated aqueous solution after 30 min. By contrast, branched systems containing modif...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1989
W Tegge C E Ballou

Chiral inositols (D-chiro-inositol from D-pinitol and L-chiro-inositol from L-quebrachitol) were converted to the 3,4-di-O-benzyl ethers, which were selectively benzoylated to yield the 1,2,5-tri-O-benzoyl-3,4-di-O-benzyl-chiro-inositols. The free hydroxyl group in each derivative was inverted by way of the trifluoromethane sulfonate ester to provide D- and L-1,2,4-tri-O-benzoyl-5,6-di-O-benzyl...

2016
Bao-Sheng Li Yuhuang Wang Rupert S. J. Proctor Yuexia Zhang Richard D. Webster Song Yang Baoan Song Yonggui Robin Chi

Benzyl bromides and related molecules are among the most common substrates in organic synthesis. They are typically used as electrophiles in nucleophilic substitution reactions. These molecules can also be activated via single-electron-transfer (SET) process for radical reactions. Representative recent progress includes α-carbon benzylation of ketones and aldehydes via photoredox catalysis. Her...

Journal: :physical chemistry research 0
h ghanadzadeh gilani ali ghanadzadeh gilani departent of chemistry, university of guilan. rasht, iran f borji peydeh s.l. seyed saadat s ahmadifar

liquid-liquid equilibria for the (water + lactic acid + benzyl alcohol or p-xylene) ternary systems were investigated at atmospheric pressure and in the temperature range from 298.15-318.15 k. the studied systems exhibit two types of liquid-liquid equilibrium (lle) behavior. the system consisting of benzyl alcohol displays type-1 lle behavior, while a type-2 behavior is exhibited by the other s...

2008
Ji-Wei Liu Seik Weng Ng

The title cadmium derivative of benzyl-oxyacetic acid, [Cd(C(9)H(9)O(3))(2)](n), exists as a μ(2)-carboxyl-ate-bridged layer network. Two benzyl-oxyacetate units each chelate the metal through a carboxylate as well as through the ether O atoms; the metal is also coordinated by the double-bond carbonyl O atom of two adjacent benzyl-oxyacetate units in an octa-hedral geometry. The metal atom lies...

2015
Josipa Suć Ivanka Jerić

Peptidomimetics based on hydrazino derivatives of α-amino acids represent an important class of peptidic foldamers with promising biological activities, like protease inhibition and antimicrobial activity. However, the lack of straightforward method for the synthesis of optically pure hydrazino acids and efficient incorporation of hydrazino building blocks into peptide sequence hamper wider exp...

2012
Gregory S. Y. Ong Colin P. Somerville Timothy W. Jones John P. Walsh

We report the first case of an anaphylactic reaction to Reandron 1000 (depot testosterone undecanoate with a castor oil and benzyl benzoate vehicle). While considered to have a favourable safety profile, serious complications such as oil embolism and anaphylaxis can occur. In our patient, skin testing identified benzyl benzoate to be the trigger, with no reaction to castor oil or testosterone u...

2016
Fangfang Pan Ngong Kodiah Beyeh Robin H. A. Ras Kari Rissanen

In methanol, N-benzyl ammonium resorcinarene chloride (Bn-NARCl) crystallizes as a solvate with the benzyl groups oriented in an open flower-like manner parallel to the cation−anion seam. 1,4-Dioxane as guest triggers a “semi-closed” single-molecule capsule with two benzyl “arms” enclosing the guest. The introduction of halogen bond (XB) donor 1,4-diiodoperfluorobutane (1,4-DIOFB) additionally ...

Journal: :Plant physiology 1974
S S Patil C S Tang

Papaya (Carica papaya L.) pulp tissue disks in an incubation medium composed of 0.4 m sucrose evolve ethylene at an optimum pH of 5.25 at 30 C. Disks of young preclimacteric fruit evolve the gas linearly with fruit age until fruit age reaches 4 months. Disks from 5-month-old postclimacteric fruit produce approximately 5-fold more ethylene than disks from 4-month-old fruit. Ethylene evolution by...

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