Anthranilic acid and 3-indolyl-propan-1,2-diol as precursors of photorubin in Saccharomyces

Synthesis and application of silica phen

Synthesis and application of silica phenyl sulfonic acid as a solid acid heterogeneous catalyst for one-pot synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazoles and bis(indolyl)methanes in water

✍ Hojat Veisi; Alireza Sedrpoushan; Mohammad Ali Zolfigol; Farajollah Mohanazadeh 📂 Article 📅 2011 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 302 KB

## Abstract Silica phenyl sulfonic acid (SPSA) was prepared and effectively used in the one‐pot synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1,3‐benzimidazoles from __o__‐phenylenediamine with aldehydes in water in the presence of tetrabutyl ammonium bromide with good to high yield. Also, SPSA was used as a