93723-09-2Relevant articles and documents
Synthesis of hindered spiro-oxindoles by photolysis of 1-(1- alkenyl)benzotriazoles
Dutton, Jonathan K.,Pleynet, David P. M.,Johnson, Peter A.
, p. 11927 - 11942 (2007/10/03)
Photolysis of 1-(1-alkoxy-1-alkenyl)benzotriazoles gives moderate yields of 2-alkoxy-indolenines, which can be hydrolysed to oxindoles. A side reaction leads to the formation of imino-oxetanes. The formation of the 2- alkoxy-indolenines is quite insensitive to steric hindrance at the reacting centres.