J. Ishihara et al., ISOMERIZATION OF THE (Z)-ENYNE UNIT TO THE (E)-ENYNE UNIT - CONVERSION OF LAUREATIN TO (E)-ISOLAUREATIN, Chemistry Letters, (8), 1994, pp. 1563-1564
The (Z)-enyne compound bearing the acetylene part protected with dicob
alt octacarbonyl, derived from laureatin, was reacted with trifluorome
thanesulfonic acid to afford exclusively the corresponding (E)-derivat
ive related to (E)-isolaureatin.