Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Trifluoromethanesulfonic acid efficiently catalyzes the conjugate addition of indoles to p-benzoquinones under mild conditions affording the corresponding indolylquinones in high yields with high selectivity. In particular, the poorly reactive menadione underwent reaction with indoles under similar conditions to give 3-indolylnaphthoquinones