Хотя, в крутых базах могут быть и в электроне.
Спасибо Ol.Lo
2) Revue Roumaine de Chimie; vol. 46; nb. 5; (2001); p. 535 - 542
Abd El-Ghaffar, Nahed F.; Kassab, Rafika R. S.; Soliman, Fekria M. A.; Synthesis and Reactions of New Substituted Pyrimidine Thione Derivatives as Antimicrobial Agents
El-Desuky, S.; El-Deen, I. M.; Abdel-Megid, M.; USE OF 2-(3-PHENYLTHIOUREIDO)BENZOIC ACID IN THE SYNTHESIS OF HETEROCYCLESAND THEIR DERIVATIVES
Помогли в другом месте
El-Hashash; Abdel-Rahman; Soliman; Synthesis and reactions of 4, 6-disubstituted pyrimidin-2 (1H)-thione derivatives as antimicrobial agents
Помогли в другом месте
Amine, M. S.; Arief, M. M. H.; Wasfy, A. A. F.; β-Aroylacrylic acids in heterocyclic synhesis:Part 1-Synthesis of condensed and non-condensed heterocyclic systems from 2-amino-4-(1̀,1̀-dioxadibenzothien-4̀-oylmethyl)-5-hydroxy-thiazole.
Помогли в другом месте