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Recent News and Articles on the Keywords: new oxidation + important new + new  Related to the article below (Last Update: 5/12/2008)

New Carbonyl Allylations
Chemical & Engineering News -
IN AN EFFORT to build molecules via greener and less expensive processes, chemists at the University of Texas, Austin, have developed two new carbonyl ...
Heart Disease Discovery: New Mechanism Links Activation Of Key ...
Science Daily (press release) - May 4, 2008
The new study proves that oxidation -- adding oxygen -- also can sustain the enzyme's activity, and like phosphorylation, the mechanism can be reversed to ...
Kaeline Launches New Line of Luxury Botanical Skin Care Creams in USA
PR-CANADA.net (press release), Montenegro - May 9, 2008
?Our new creams are not only a great extension to our premium argan oil based skincare line, they continue to reflect our commitment to respond to what our ...

Ottawa Citizen
100 Mile Bread
Ottawa Citizen,  Canada - May 8, 2008
Trendwatch: D'Vaja's new vanilla slices -- puff pastry slices made with real vanilla beans in the filling -- are hot new sellers. And with Ottawa gearing up ...
Full Text
Science Magazine (subscription) - May 8, 2008
Third, researchers have found several new lineages responsible for nitrogen fixation. Trichodesmium (see the figure, left panel) and symbionts of diatoms ...
New strategies against bird flu
Hindu, India - Apr 19, 2008
"Since we found a common injury pathway, our hopes are high that we may be able to develop a new and innovative strategy for tackling severe lung infections ...

Natural News.com
Transform Yourself From the Inside-Out and Look Your Best Naturally
Natural News.com, AZ - May 11, 2008
Arginine is important in the formation of new bone and collagen. Dietary sources of this amino acid are cacao, carob, hemp seeds, celery, coconut, peanuts, ...
Examining Sensor-based Condition Monitoring
Machinery Lubrication Magaz, OK - May 9, 2008
The complex nature of machinery in industrial environments requires sophisticated maintenance practices that continuously evolve to meet new application ...
Jade Mountain Corporation Announces Name Change to RINO ...
Earthtimes (press release), UK - May 9, 2008
Additionally, the Company's new CUSIP number is 766883 102. "We are pleased to have successfully completed our name change to RINO International Corporation ...OTC:JDMC - TYO:4756
Advanced surface treatments request ISO
Manufacturing Talk, UK - May 8, 2008
The new facility not only provides an impressive showcase for the novel PEO technology, but serves as a center for customer-focused application development ...
Source: Google News

[PDF] Letter to Nature Missing Lithotroph Identified as New Planctomycete -
M Strous, JA Fuerst, EHM Kramer, S Logemann, G … - Nature, 1999 - espace.library.uq.edu.au
... 5 . The new ... The identification of this bacterium as the one responsible for anaerobic
oxidation of ammonia makes an important contribution to the ...
-

New perspectives on anaerobic methane oxidation -
DL Valentine, WS Reeburgh - Environmental Microbiology, 2000 - Blackwell Synergy
... is responsible for the observed oxidation of methane. The present review analyses
new data that pertain to the mechanism and environmental importance of SDMO ...

[CITATION] Polyoxometalate Chemistry: An Old Field with New Dimensions in Several Disciplines
MT Pope, A Mueller - Angewandte Chemie International Edition in English, 1991

THE NF-?B AND I?B PROTEINS: New Discoveries and Insights -
AS Baldwin Jr - Annual Reviews in Immunology, 1996 - Annual Reviews
... Exciting new research has elaborated several important and unexpected findings
that explain mechanisms involved in the activation of NF-?B. ...

Gapped BLAST and PSI-BLAST: a new generation of protein database search programs -
SF Altschul, TL Madden, AA Schaffer, J Zhang, Z … - Nucleic Acids Research - Oxford Univ Press
... The new gapped alignment algorithm uses dynamic programming to extend a central
pair ... When gaps are not allowed, a further important theorem states that within ...

a-Methylacyl-CoA Racemase A New Molecular Marker for Prostate Cancer 1 -
J Luo, S Zha, WR Gage, TA Dunn, JL Hicks, CJ … - Cancer Research, 2002 - AACR
... the AMACR gene plays a critical role in peroxisomal ? oxidation of branched ... of cancer
cell-specific expression, we propose AMACR as an important new marker of ...

Treatment and Prevention of Intraepithelial Neoplasia: An Important Target for Accelerated New Agent … -
JA O'Shaughnessy, GJ Kelloff, GB Gordon, AJ … - Clinical Cancer Research, 2002 - AACR
... and Prevention of Intraepithelial Neoplasia: An Important Target for ... to the rapid
development of new agents to ... cream prevents UVB-induced oxidation of lipids ...

[PDF] New drug targets for type 2 diabetes and the metabolic syndrome -
DE Moller - Nature, 2001 - individual.utoronto.ca
... Two lines of evidence indicate an important role for ... targeting AMP activation as
a new therapeutic approach ... ized by increased fatty-acid oxidation with markedly ...
-

New evidence of the antiquity of life -
JW Schopf - Origins of Life and Evolution of Biospheres, 1994 - Springer
... The microfossils of the Apex chert provide an important new glimpse of the ... This process
of mantle oxidation should have continued until -2.0 billion years (by ...

… material in natural surface coatings as determined by selective extractions: new evidence for the … -
D Dong, YM Nelson, LW Lion, ML Shuler, WC Ghiorse - Water Research, 2000 - Elsevier
... would lead to an underestimation of the importance of the ... Cayuga Lake in central
New York State (USA) was chosen as ... in mg C/L (assuming an oxidation state of ...

Source: Google Scholar

New oxidation methods streamline synthesis of important compounds
CHAMPAIGN, Ill. — One of the fundamental challenges facing organic synthesis in the 21st century is the need to significantly increase the efficiency with which carbon frameworks can be constructed and functionalized. Chemists at the University of Illinois are helping to meet this challenge by developing a class of carbon-hydrogen catalysts that are highly selective, reactive and tolerant of other functionality.

The catalysts also offer a new strategy for streamlining the synthesis of important compounds, including drugs and pharmaceuticals, by avoiding the functional group manipulations required for working with oxidized materials.

“We are creating a toolbox of catalytic reactions that allow us to go directly from a carbon-hydrogen bond to a carbon-oxygen bond or to a carbon-nitrogen bond,” said M. Christina White, a professor of chemistry at Illinois. “By offering fewer steps, fewer functional group manipulations and higher yields, this toolbox will change the way chemists make molecules.”
Currently, chemists must make molecules by beginning with something that is already oxidized. But, having to start with that functionality means it must be carried – and protected – throughout the entire synthetic sequence. And that costs reagents, time, money and manpower, in addition to being inherently inefficient.

“Unlike standard synthetic methods, we don’t have to carry the functionality throughout the entire sequence,” White said. “Instead, we carry latent functionality as a carbon-hydrogen bond. Then, at a late stage in the synthesis, we remove the hydrogen and replace it with oxygen or nitrogen – right where we need it for the next chemical reaction.”

In the June 13 issue of the Journal of the American Chemical Society, White and graduate student Kenneth J. Fraunhoffer describe the catalytic pathway they used to synthesize a derivative of the chemotherapeutic reagent acosamine. They were able to eliminate all of the functional group manipulations and cut by one-half the number of steps required, while maintaining the same purity and yield.

White has also used her catalyst to streamline the synthesis of a peptidase inhibitor drug candidate, a nucleotide-sugar L-galactose, and is currently working on the antibiotic erythromycin A.

White’s research is funded by the Henry Dreyfus Foundation, the A.P. Sloan Foundation, the University of Illinois, Merck Research Laboratories, the National Institutes of Health and the National Science Foundation.

Editor’s note: To reach M. Christina White, call 217-333-6173; e-mail: white@scs.uiuc.edu

To view or subscribe to the RSS feed for Science News at Illinois, please go to: http://webtools.uiuc.edu/rssManager/608/rss.xml.
 
 
 
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