91455-02-6Relevant articles and documents
First general solvent-free synthesis of symmetrical triindolylmethanes using acid-washed montmorillonite clay
Chakrabarty, Manas,Sarkar, Sandipan,Linden, Anthony,Stein, Bridget K.
, p. 1801 - 1810 (2004)
Dry reaction of indoles and alkylindoles (1a-h) with triethyl orthoformate (2.5 equiv.) on acid-washed montmorillonite K10 clay at room temperature afforded in 5 min-4 hr the respective symmetrical TIMs (2a-h) in good to high yields along with the formylindole 3 and the formyl-TIM 4 from 1g and 1h, respectively.