4H-1,3,5-Oxadiazine und 4H-1,3,5-Thiadiazine aus Cyanamiden und Perhalogenketonen bzw. -thioketonen
✍ Scribed by Burger, Klaus ;Simmerl, Reinhold
- Book ID
- 102363528
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 434 KB
- Volume
- 1984
- Category
- Article
- ISSN
- 0947-3440
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Hexafluoraceton (1a) und symmetrisch substituiertes Dichlortetrafluoraceton (1b) liefern mit Cyanamiden 2 4__H__‐1,3,5‐Oxadiazine 6, und nicht – wie früher beschrieben – 2__H__‐1,3,5‐Oxadiazine 3, Mit Hexafluorthioaceton (13) werden 4__H__‐1,3,5‐Thiadiazine 14 erhalten.
📜 SIMILAR VOLUMES
1,3‐Dipolar Cycloadditions of a Carhonyl‐ylide with 1,3‐Thiazole‐5(4__H__)‐thiones and Thioketones In__p__‐xylene at 150°, 3‐phenyloxirane‐2,2‐dicarbonitrile (4b) and 2‐phenyl‐3‐thia‐1‐azaspiro[4.4]non‐1‐ene‐4‐thione (1a) gave the three 1:1 adduets __trans__‐3a, __cis__‐3a, and 13ain 61, 21, and 3%
## Addition Reaction of I ,3-Thiazole-S(4H)-thiones and Ynamines; Formation of Thioamides and Thioketones Ynamines and 1,3-thiazole-S(4H)-thiones of type 1 undergo an addition reaction on heating in toluene yielding mainly a$-unsaturated 2-(4,5-dihydro-l,3-thiazol-S-yliden)thioamides of type 7 (Sc