%0 Journal Article %T Opening of forbinexocycle by weak O-nucleophiles. Study and optimisation of free chlorine e6 synthesis methods %A Karimov, D.R. %K phorbines, O-nucleophiles; exocycle uncoupling, chlorine e6 derivatives, photosensitisers %J From Chemistry Towards Technology Step-By-Step %D 2023 %N 4 %P 12 %I Yaroslavl State Technical University