scholarly journals Oxidative Cleavage of Diselenide bym-Nitrobenzenesulfonyl Peroxide. Novel Method for the Electrophilic Benzeneselenenylations of Olefins and Aromatic Rings

1991 ◽  
Vol 64 (2) ◽  
pp. 416-422 ◽  
Author(s):  
Masato Yoshida ◽  
Shuichi Sasage ◽  
Kyoko Kawamura ◽  
Takashi Suzuki ◽  
Nobumasa Kamigata
Keyword(s):  
Oxidative Cleavage ◽  
Aromatic Rings ◽  
Novel Method

A Novel Method for Sulfonation of Aromatic Rings with Silica Sulfuric Acid.

ChemInform ◽  
2004 ◽  
Vol 35 (49) ◽  
Author(s):  
Abdol R. Hajipour ◽  
Bi Bi F. Mirjalili ◽  
Amin Zarei ◽  
Leila Khazdooz ◽  
A. E. Ruoho
Keyword(s):  
Sulfuric Acid ◽  
Silica Sulfuric Acid ◽  
Aromatic Rings ◽  
Novel Method

A novel method for copper(ii) mediated region-selective bromination of aromatic rings under mild conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61214-61220 ◽  
Author(s):  
Samim Khan ◽  
Subrata Jana ◽  
Michael G. B. Drew ◽  
Antonio Bauza ◽  
Antonio Frontera ◽  
...  
Keyword(s):  
Schiff Base ◽  
Complex Formation ◽  
Aromatic Ring ◽  
Schiff Base Ligand ◽  
Aromatic Rings ◽  
Mild Conditions ◽  
Square Planar ◽  
Novel Method ◽  
Tridentate Schiff Base

A square planar copper(ii) complex has been synthesized using a tridentate Schiff base ligand H2L and characterized. During complex formation, bromination at the 4 position of the aromatic ring of the Schiff base ligand has taken place.

A novel method for sulfonation of aromatic rings with silica sulfuric acid

2004 ◽  
Vol 45 (35) ◽  
pp. 6607-6609 ◽  
Author(s):  
Abdol R. Hajipour ◽  
Bi Bi F. Mirjalili ◽  
Amin Zarei ◽  
Leila Khazdooz ◽  
A.E. Ruoho
Keyword(s):  
Sulfuric Acid ◽  
Silica Sulfuric Acid ◽  
Aromatic Rings ◽  
Novel Method

The removal and morphology of intact biofilms from implanted venous access devices

1995 ◽  
Vol 53 ◽  
pp. 1020-1021
Author(s):  
M.A. Gregory ◽  
G.P. Hadley
Keyword(s):  
Patient Selection ◽  
Surgical Oncology ◽  
Venous Access ◽  
Common Procedure ◽  
Indwelling Catheters ◽  
Careful Patient ◽  
Novel Method ◽  
The Subject ◽  
Vascular Catheters ◽  
Venous Access Devices

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.

Chemical and orientational imaging of polymeric samples

1994 ◽  
Vol 52 ◽  
pp. 68-69
Author(s):  
H. Ade ◽  
B. Hsiao ◽  
G. Mitchell ◽  
E. Rightor ◽  
A. P. Smith ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
National Laboratory ◽  
Brookhaven National Laboratory ◽  
Carbonyl Groups ◽  
Aromatic Rings ◽  
Edge Structure ◽  
X Ray ◽  
Scanning Transmission ◽  
Polymeric Samples ◽  
X Ray Absorption

We have used the Scanning Transmission X-ray Microscope at beamline X1A (X1-STXM) at Brookhaven National Laboratory (BNL) to acquire high resolution, chemical and orientation sensitive images of polymeric samples as well as point spectra from 0.1 μm areas. This sensitivity is achieved by exploiting the X-ray Absorption Near Edge Structure (XANES) of the carbon K edge. One of the most illustrative example of the chemical sensitivity achievable is provided by images of a polycarbonate/pol(ethylene terephthalate) (70/30 PC/PET) blend. Contrast reversal at high overall contrast is observed between images acquired at 285.36 and 285.69 eV (Fig. 1). Contrast in these images is achieved by exploring subtle differences between resonances associated with the π bonds (sp hybridization) of the aromatic groups of each polymer. PET has a split peak associated with these aromatic groups, due to the proximity of its carbonyl groups to its aromatic rings, whereas PC has only a single peak.

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