𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Reaction of Cyanothioformamide with Isocyanates − Formation of a Disulfide by Reduction of a Thiocarbonyl Group

✍ Scribed by Roger Ketcham; Ernst Schaumann; Gunadi Adiwidjaja

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
282 KB
Volume
2001
Category
Article
ISSN
1434-193X

No coin nor oath required. For personal study only.

✦ Synopsis

The reactions of the title compounds are governed by sulfur redox chemistry. Thus, cyanothioformamide 2 reacts with aryl isocyanates 3a-c to give bis[3-aryl-1-(arylcarbamoyl)-2oxo-4-(arylcarbamoylimino)imidazolidin-5-yl] disulfides 6, as shown by an X-ray crystallographic investigation of product 6a. Reaction with methyl isocyanate (3d) gives the related [ ‡] Heterocyclic Ring-Closure Reactions, Part XI. Ϫ Part X: Ref.

📜 SIMILAR VOLUMES

Preparation of Isocyanates from Carbamat
Preparation of Isocyanates from Carbamates by Reaction with Phosgene
✍ Dr. H. Ulrich; B. Tucker; Dr. A. A. R. Saytgh 📂 Article 📅 1967 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB 👁 1 views

gram [SiOz; solvent, benzene/cycIohexane (1 :9)] showed a double spot, which is attributed to presence of the mixture of tautomers (4a)/(4b). (3a) + (I)-Li 1 J3 L (40) Jz (4b)

A study on the grafting reaction of isoc
A study on the grafting reaction of isocyanates with hydroxyapatite particles
✍ Liu, Q. ;de Wijn, J. R. ;van Blitterswijk, C. A. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 212 KB 👁 1 views

The surface grafting reactions of a series of isocyanates with hydroxyapatite particles at different temperatures were studied by Infrared spectrophotometry (IR) and thermal gravimetric analysis (TGA). The study results show that both hexamethylene diisocyanate (HMDI) and isocyanatoethyl methacrylat