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Crystal and molecular structure of tetraiodo (1,8-di-2-pyridyl-3,6-dithiaoctane-N,S,S′,N′)dimercury(II)

✍ Scribed by A. Castiñeiras; Gladys Diaz; F. Florencio; S. Garcia-Blanco; S. Martinez-Carrera


Publisher
Springer
Year
1988
Tongue
English
Weight
254 KB
Volume
18
Category
Article
ISSN
1572-8854

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Simple preparation of epimeric 2,6-dimet
✍ Juraj Bernát; Ladislav Kniežo; Gabriela Birošová; Ján Imrich; Jaroslav Podlaha; 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 647 KB

One-pot reaction of acetaldehyde, KSCN and POCl3 affords 2,6dimethyl-4-isothiocyanato-1,3dioxane 4 in good yield. Compound 4 reacts with primary amines to give crystalline re/-2S,4R,6S-2,6dimethyl-4-(N'substituted thiourefdo)-1,3dioxanes 5. The obtained thioureas 5 with axial thioureido group are sp