Rr. Kakulapati et al., HIGHLY SELECTIVE BIOCATALYTIC CYCLOADDITION OF AZODICARBOXYLATES TO VINYLPYRIDINES, Bulletin of the Chemical Society of Japan, 66(8), 1993, pp. 2429-2429
Biocatalytic [4+2] cycloaddition of vinylpyridines with azodicarboxyla
tes in the presence of 'Saccharomyces cerevisiae' proceeds selectively
in good yields.