Cycloaddition of CO2 and CS2 to a cyclic phosphazene

✍ Scribed by Thomas von Criegern; Kurt Polborn; Alfred Schmidpeter

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 164 KB
• Volume: 10
• Category: Article
• ISSN: 1042-7163
• DOI: 10.1002/(sici)1098-1071(1999)10:2<167::aid-hc11>3.0.co;2-j

✦ Synopsis

Carbon dioxide and carbon disulfide

give crystalline cycloadducts with the phosphazene bond of a 1,2k 5 -azaphosphole. The CO 2 -adduct fully dissociates in solution, the CS 2 -adduct on short heating only to a small part. On longer heating, the latter rearranges in two successive 1,3-shifts to give a thiophosphinylimino dihydrothiophene, the structure of which is revealed by X-ray analysis.