929609-76-7Relevant academic research and scientific papers
Sterically modified chiral (salen)Cr(III) complexes - Efficient catalysts for the oxo-Diels-Alder reaction between glyoxylates and cyclohexa-1,3-diene
Cha?adaj, Wojciech,Kwiatkowski, Piotr,Jurczak, Janusz
, p. 3263 - 3266 (2006)
A group of chiral [(salen)Cr(III)]+BF4- complexes, with enhanced steric hindrance in 3,3′-positions of salicylidene moiety, has been synthesized and applied for the oxo-Diels-Alder reaction of alkyl glyoxylates with cyclohexa-1,3-diene. A readily accessible complex that bears bulky adamanthyl substituents revealed its potential, leading to the cycloadducts with excellent selectivity (up to endo/exo 99:1, 98% ee), considerably better than the classic Jacobsen catalyst. Georg Thieme Verlag Stuttgart.
