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Chemistry > Chemical Synthesis > Learning Center > ChemNews > 2008 > January 2008
ChemNews

January 2008
ChemNews: Montly Chemistry eNewsletter
January 2008
Welcome to ChemNews!

Our January ChemNews showcases over 50 brand NEW and innovative products for Catalysis and other new reagents and building blocks 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.
New Products
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Hot News

New Cross-Coupling Application Portal
See our comprehensive portfolio of catalysts, reagents and reactants for cross-coupling compiled in a series of ChemFiles, Technology Highlights and ChemBlogs featuring examples of applications using these products.

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Latest ChemBlogs

A Novel, Cu(I)–(R,R)-Bisphosphinoquinoxaline-Catalyzed, Enantioselective Substitution of Allylic Carbonates with Bis(pinacolato)diboron

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New Literature
Allenes and Ionic Liquids in Asymmetric Synthesis
Vol. 40, No. 4
Allenes and Ionic Liquids in Asymmetric Synthesis
(3.95 Mb PDF) 		Cross-Coupling
Vol. 7, No. 10
Cross-Coupling
(3.45 Mb PDF) 		Organocatalysis
Vol. 7, No. 9
Organocatalysis
(3.0 Mb PDF)

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NEW cataCXium® Ligands

Ligands for Various Cross-Coupling Reactions
cataCXium Products Sold in Collaboration with
Evonik Degussa GmbH for Research Purposes

 
672017 Structure

672017		 672122 Structure

672122		 671479 Structure

671479		 671584 Structure

671584
 
671800 Structure

671800		 672661 Structure

672661		 672564 Structure

672564		 672343 Structure

672343
 
672459 Structure

672459		 672785 Structure

672785		 691100 Structure

691100		 688681 Structure

688681
 
688800 Structure

688800		 671355 Evonik Ligand Kit for CX Coupling Reactions

671355 – Evonik Ligand Kit for
CX Coupling Reactions
 


NEW catASium® Catalysts and Ligands

Ligands and Catalysts for Various Enantioselective Reactions
catASium Products Sold in Collaboration with
Evonik Degussa GmbH for Research Purposes

                       
671029 Structure

671029		 671142 Structure

671142		 671258 Structure

671258		 670693 Structure

670693
 
670804 Structure

670804		 672653 Structure

672653		 672777 Structure

672777
 

NEW Gold Catalysts

682705 Structure

682705		 695173 Structure

695173
691674 Structure

691674
 

NEW Boron Reagents for Suzuki Coupling

                       
695661 Structure

695661		 695009 Structure

695009		 694991 Structure

694991		 666947 Structure

666947
695629 Structure

695629
688290 Structure

688290
694584 Structure

694584
 

NEW Azaindoles

                       
692549 Structure

692549		 694711 Structure

694711		 692557 Structure

692557		 692298 Structure

692298

694681 Structure

694681
692530 Structure

692530		 693588 Structure

693588
 

NEW Unnatural Amino Acids

                       
668036 Structure

668036		 686433 Structure

686433		 686425 Structure

686425		 691429 Structure

691429
691437 Structure

691437		 691445 Structure

691445
573434 Structure

573434		 670758 Structure

670758
669792 Structure

669792		 669903 Structure

669903		 689459 Structure

689459
670138 Structure

670138

670235 Structure

670350		 670340 Structure

670340
 

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Technology Spotlights

Trost Ligands for Asymmetric Allylic Alkylation (AAA)

Headline graphic for Asymmetric Allylic Alkylation


Umicore Precatalysts for Asymmetric Reactions

Precatalysts for Asymmetric and Cross-Coupling Catalysis


(R)-(+)- and (S)-(–)-Stericol®: New, Effective Chiral Auxiliaries

Stericol Title Scheme


 

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The first example of a Cu(I)-catalyzed, highly enantioselective allylic substitution with a heteroatom nucleophile has recently been reported by Ito, Sawamura, and co-workers. The reaction leads to

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