Ds. Black et al., Synthesis of tethered indoles in the search for conformationally controlled calixindoles: an indole 3-substituent tether, TETRAHEDRON, 57(11), 2001, pp. 2203-2211
3-(2-Hydroxyphenyl)-4,6-dimethoxyindole 8 has been synthesised and linked t
o 1,3,5-tribromomethylbenzene and 1,2,4,5 tetrabromomethylbenzene to give t
he tri-indolyl and tetra-indolyl compounds 18 and 23, respectively. Attempt
s to generate capped calix[3]indoles and calix[4]indoles from these compoun
ds were unsuccessful. (C) 2001 Elsevier Science Ltd. AU rights reserved.