Ab. Borisov et al., USE OF MENO(2)-LICLO4 IN PROMOTING A 1,2-SHIFT IN RSCL ELECTROPHILIC ADDITION TO 3,3-DIMETHYLBUT-1-ENE - REACTION COURSE AND STEREOCHEMISTRY, Mendeleev communications, (2), 1996, pp. 52-53
In the Ad(E) reaction of RSCI with 3,3-dimethylbut-1-ene the system Me
NO(2)-LiClO4 serves as an efficient promoter of a 1,2-shift which occu
rs either simultaneously with the electrophilic addition step (pi-rout
e) or as a rearrangement of the initially-formed 1,2-adducts (sigma-ro
ute) and proceeds in a highly stereoselective fashion.