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Welcome to ChemNews!
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Our April ChemNews showcases over 40 brand NEW and innovative products for C–C and C–X Bond Formation and other new building blocks and reagents for Chemical Synthesis. In addition, we're featuring the latest literature for chemical synthesis available from Sigma-Aldrich, as well our latest product highlights — all easily accessed from one convenient location.
Make sure you subscribe to ChemNews — all ChemNews subscribers can download quarterly pdf and sdf files that contain all the new products added during the year.
Check out the categories to the right and click on the links to view the latest products in that category.
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New Products
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NEW! Cheminar 4.1
The Efficient Application of Olefin Metathesis in Pharmaceuticals and Fine Chemicals
by Richard Pederson, PhD, Director Fine Chemicals R & D, Materia, Inc.
NEW! 2009-2010 Aldrich Handbook
Reserve your copy of the NEW 2009-2010 Aldrich Handbook – complete with over 6,000 innovative new products, 10,000 chemical structures, 8,500 updated literature citations, and the companion Labware Catalog, the Handbook is an indispensable reference for any lab.
Imidazolylsulfonates as Alternatives to Triflates in Cross-Coupling Reactions
Due to limitations with cost and stability of triflates, alternative electrophilic coupling partners for cross-coupling reactions are continually being researched. I recently came across a communication in Organic Letters which details the use of imidazolylsulfonates as electrophilic coupling partners. These products show significantly improved shelf-stability versus the corresponding triflates, and better reactivity than the tosylates or mesylates.
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