作者:G._A. Gazieva、Yu. V. Nelyubina、A. N. Kravchenko、A. S. Sigachev、I. V. Glukhov、M. I. Struchkova、K. A. Lyssenko、N. N. Makhova
DOI:10.1007/s11172-009-0266-1
日期:2009.9
α-Thioureidoalkylation of urea heteroanalogs such as thiosemicarbazide, amino-guanidine, sulfamide, and sulfonamides with 4,5-dihydroxyimidazolidine-2-thiones has been studied. Previously unknown 4,5-bis[thiosemicarbazido(guanidinoamino)]imidazolidine-2-thiones, 5,7-dialkylperhydroimidazo[4,5- e][1,2,4]triazine-3,6-dithiones, 4,6-diethyl-5(3H)-thioxotetrahydro-1 H-imidazo[4,5- c][1,2,5]thiadiazole 2,2-dioxide, and 1,3-dialkyl-4-[guanidinoimino(arylsulfonylimino)]imidazolidine-2-thiones have been synthesized.
Semithiobambusurils, which represent a newfamily of macrocyclic host molecules, have been prepared by a convenient, scalable synthesis. These newcavitands are double functional: they strongly bind a broad variety of anions in their interiors and metal ions at their sulfur‐edged portals. The solid‐state structure of semithiobambus[4]uril with HgCl2 demonstrates the ability of these compounds to form