M. Tiecco et al., ELECTROPHILIC AZIDO SELENENYLATION OF ALKENES - A SIMPLE SYNTHETIC ROUTE TO RACEMIC TAXOL SIDE-CHAIN, Synthetic communications, 28(12), 1998, pp. 2167-2179
Simple alkenes react with PhSeOTf and NaN3 in MeCN to afford beta-phen
ylseleno azides as the result of a stereospecific trans addition. The
regioselectivity of the process is determined by the structure of the
alkene.