Stereochemistry of intramolecular Diels–Alder furan (IMDAF) reactions of furyl-substituted chiral ethanolamides
作者:Reynier A. Tromp、Johannes Brussee、Arne van der Gen
DOI:10.1039/b307275d
日期:——
describes the stereoselective outcome of the intramolecular Diels-Alder furan (IMDAF) reaction of substituted (2S,3S)-ethanolamides 9-13, which were synthesised from a furyl substituted cyanohydrin. The latter was obtained from 2-furaldehyde with high enantioselectivity by an oxynitrilase catalysed addition of hydrogen cyanide. The stereochemistry of the IMDAF products was shown to be dependent on the size