An Approach to Chiral η4-Butadiene-Fe(CO)3 Complexes via Diastereoselective Complexation of Nonracemic 2-Alkoxy-4-vinyl-2,5-dihydrofuran Derivatives

Article abstract of DOI:10.1016/S0040-4039(00)60723-2

Complexation of (+)-L-arabinose-derived 2-benzyloxy-4-vinyl-2,5-dihydrofuran derivatives (8) with Fe2(CO)9 in ether proceeds diastereoselectively providing a (separable) mixture of the corresponding exo- and endo- η⁴-diene-Fe(CO)3 complexes 9 and 10 in a ratio of about 1 : 3.The relative (and absolute) configuration of the complexation products was determined by a combination of analytical methods (CD, NMR, X-ray).