Novel peripheral substituent migration reactions in tetrapyrrole macrocycles
Copper(II) promoted cyclizations of a,c-biladiene salts bearing large terminal (1′,8′) substituents afford intermediates which suffer a variety of cleavage and cyclization reactions, in a stepwise manner, to yield mono-mesosubstituted porphyrins, chlorins, and di-meso-substituted porphyrins via facile migration reactions. © 1990.
Publication Source (Journal or Book title)
Liddell, P., Olmstead, M., & Smith, K. (1990). Novel peripheral substituent migration reactions in tetrapyrrole macrocycles. Tetrahedron Letters, 31 (19), 2685-2688. https://doi.org/10.1016/S0040-4039(00)94672-0