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Copper(II) Tetrafluoroborate as a Novel and Highly Efficient Catalyst for Acetal Formation.

โœ Scribed by Raj Kumar; Asit K. Chakraborti


Publisher
John Wiley and Sons
Year
2006
Weight
26 KB
Volume
37
Category
Article
ISSN
0931-7597

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The enantiomerically pure ruthenium carbonyl porphyrin 5 is an extremely active and selective catalyst for the asymmetric cyclopropanation of olefins with diazo compounds. At a catalyst loading of only 0.15 mol-%, quantitative yields, excellent diastereoselectivities (trans:cis 96:4) and high enanti