Mild Generation of Alkylidenecarbenes from (Tosylazo)alkenes and Silylvinyl Triflates. Mode of Decomposition and Nature of the Carbene Intermediates

Article abstract of DOI:10.1021/jo00170a024

(Tosylazo)alkenes, R2C=CHN=NTs, decomposed in olefin-solvent mixtures both under neutral conditions at room temperature and with amine bases present to produce alkylidenecyclopropanes in moderate to good yields.Diazoalkenes, R2C=C=N2, were implicated as t