A water-soluble cyclic tetramer from rea
โ
Bo-Long Poh; Chooi Seng Lim; Kong Soo Khoo
๐
Article
๐
1989
๐
Elsevier Science
๐
French
โ 209 KB
Chromotropic acid, disodium salt, reacts with an excess amount of formaldehyde in water to give a dark red plastic-like water-soluble cyclic tetrameric compound. Water-soluble synthetic macrocyclic compounds have been the focus of. interest of many chemists in recent years. l-3 We report in this p