F. Hajek et al., MULTICAVITANDS .4. SYNTHESIS OF LINEAR KOILANDS OBTAINED BY FUSION OFCALIX[4]ARENE DERIVATIVES BY SILICON ATOMS, Tetrahedron letters, 37(9), 1996, pp. 1409-1412
The synthesis of koilands based on the double fusion of two p-methylca
lix[4]arenes, two p-phenylcalix[4]arenes with two silicon atoms, and o
f compounds composed of two and three calix[4]arene units fused with o
ne and two silicon atoms, respectively was achieved.