01/24/2012
A new Tool for Selective Reductions - Lithiumborohydride 10% in THF
Lithiumborohydride - A tool for selective reductions - now available in commercial quantities... more
05/04/2011
Toolbox for Organo-Zinc Chemistry
The very useful application of organo-zinc reagents in C-C cross-coupling reactions was honored in 2010 by awarding the Nobel prize to Ei-ichi Negishi, Akira Suzuki and Richard H. Heck. The demands of today’s API and natural...... more
03/22/2011
Zinc-Reagents: Powerful and Selective Tools for C-C Coupling Reactions
Chemetall offers with its “Tools for Organic Synthesis” an innovative and versatile toolbox of organometallics. These reagents are useful synthons for the synthesis of pharmaceuticals, agrochemicals, flavours, fragrances and...... more
08/24/2010
Lithium aluminum hydride (LAH) with improved physical properties:
Frankfurt, August 24, 2010 Chemetall has developed a new crystalline powder quality with improved physical properties: Lithium Aluminum Hydride, sieved < 1 mm (prod. no. 401617). Compared to our standard fine crystalline...... more
08/10/2010
Water-free salts in organic solvents
August 10, 2010 Inorganic salts are frequently used today to increase the efficiency or organic reactions. Salt effects can lead to better yields and higher selectivities.... more
01/20/2010
New alkyllithium compounds available
January 20, 2010 Alkyllithium compounds are powerful reagents in organic synthesis, used for the introduction of an alkyl group, for metalation or as strong bases. ... more
10/29/2009
LHMDS now available as solid compound
October 29, 2009 In addition to the existing forms of delivery in solvents, Chemetall is now providing Lithium hexamethyldisilazide (LHMDS) in solid form.... more
09/16/2009
Bis-TMP-Zinc shows an outstanding functional group tolerance
September 16, 2009 In 2008 Chemetall introduced with TMPMgCl/LiCl an advanced reagent to improve functional group tolerance in regioselective deprotonation reactions. Advantages are an enhanced kinetic reactivity and basicity,...... more
10/16/2008
A new synthetic tool for deprotonation reactions
October 16, 2008 Hauser bases (R2N-Mg-Hal) and magnesium bisamides (R2N-Mg-NR2) are receiving growing interest as useful synthetic tools for deprotonations. The procedure developed by Knochel et al. significantly improves the...... more
08/13/2008
Chemetall introduces Alkoxides in innovative solvents
August 13, 2008 To meet the market requirement for solvent recycling and ease of product purification Chemetall is broadening the range of its alkoxide-based deprotonation reagents. Lithium and sodium alkoxides are now...... more
04/18/2008
A new synthetic tool for C-C-coupling reactions
April 18, 2008 The procedure developed by Knochel et al. is based on Imamotos method which uses solid, poorly soluble CeCl3. The improved protocol offers a lot of advantages:... more
06/04/2007
TurboGrignard
June 14, 2007 TurboGrignard a Li-powered metalation Halogen/magnesium-exchange reactions have been proven to be an excellent tool to prepare functionalised aryl and heteroaryl Grignard reagents. However these transformations...... more
06/04/2007
New Grignard Reagents
June 4, 2007 An investment has been realised at Chemetall´s Grignard plant to allow the safe handling of additional toxic starting materials. Chemetall is now in a position to offer industrial quantities of ... more
11/22/2005
New UN Classification for Lithium Alkyls
November 22, 2005 Chemetall would like to inform about the new UN number for Lithium Alkyls and the change within the different regulations applicable to the different modes of transportation (e.g. ADR, RID, IATA). ... more
11/11/2005
SecuBags®/Change of Composition
November 11, 2005 Chemetall informs that the composition of the SecuBags® will be changed for all shipments beginning January 1, 2006. This step is necessary as the production of one of the ingredients for the SecuBags® has been...... more
