Answers are grounded in this paper and cite their sources.
Copper(II) bromide is found to be an efficient catalyst for the electrophilic substitution reaction of indole with aldehydes to afford the corresponding bis(indolyl)methanes in good yields.
No takes yet. Share an insight, caveat, or question.
Mo et al. (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: