Mechanistic and stereochemical aspects of the asymmetric cyclocarbonylation of 1,6-enynes with rhodium catalysts

Literature Information

Publication Date 2004-09-06
DOI 10.1039/B407843H
Impact Factor 6.222
Authors

Thomas M. Schmid, Giambattista Consiglio


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Abstract

NMR and kinetic investigations of the cyclocarbonylation of 1,6-enynes with cationic rhodium(I) catalysts, modified with atropisomeric diphosphines, disprove the involvement of carbonyl species for 1,6-enyne activation; low-temperature catalysis, with molecular sieves as the carbon monoxide reservoir, is highly enantioselective (ee up to 97%).

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