182. The Preparation of Optically Pure 7-Oxabicyclohept-2-ene Derivatives. The CD Spectrum of (+)-(1R)-7-Oxabicyclohept-5-en-2-one

Article abstract of DOI:10.1002/hlca.19830660627

(-)-1-Camphanoyloxyacrylonitrile (=(-)-1-cyanovinyl camphanate; 1) obtained from the commercially available (-)-camphanoyl chloride and 2-oxopropiononitrile added to furan at 20 deg C in the presence of Cu(BF4)2*6H2O or ZnI2 and gave a mixture of 2-cyano-