Journal of chromatography. A, 1255, 259-266 (2012-03-31)
Polymers, especially copolymers, are highly complex samples and, therefore, require various setups for their thorough characterization. In this work, one- and two-dimensional chromatographic approaches were applied to characterize two homopolymers and two dissimilar copolymers prepared by rhodium-mediated carbene polymerization using
Chemical communications (Cambridge, England), (19)(19), 2045-2047 (2006-06-13)
A number of cationic gold(I) complexes have been synthesized and found to be stabilized by the use of N-heterocyclic carbene ligands. These species are often employed as in situ-generated reactive intermediates in gold catalyzed organic transformations. An isolated, well-defined species
Palladium-catalyzed cross-coupling of aryl or vinyl iodides with ethyl diazoacetate.
Cheng Peng et al.
Journal of the American Chemical Society, 129(28), 8708-8709 (2007-06-26)
Journal of the American Chemical Society, 131(5), 1674-1675 (2009-02-05)
Magnesium-catalyzed enantioselective aldol between ethyl diazoacetate and aromatic, aliphatic, and alpha,beta-unsaturated aldehydes affords alpha-diazo-beta-hydroxy-esters in high enantioselectivities. Aldol adducts resulting from this asymmetric transformation are versatile intermediates toward the synthesis of several ester containing chiral building blocks.
The Journal of organic chemistry, 72(26), 10276-10278 (2007-11-29)
Copper-catalyzed [4 + 1] cycloaddition reaction of alpha,beta-acetylenic ketones with alpha-diazo esters offers an efficient, direct route to highly substituted furans. The reaction conditions and the scope of the process are examined, and a possible mechanism is proposed.
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![(1R,8S,9s)-Bicyclo[6.1.0]non-4-yn-9-ylmethanol for Copper-free Click Chemistry](/deepweb/assets/sigmaaldrich/product/structures/171/632/0556139a-2db5-4678-a6ec-a26a693fd574/640/0556139a-2db5-4678-a6ec-a26a693fd574.png)
