New Stationary Phase for Chromatography

✍ Scribed by Prof. I. Halász; Dipl.-Ing. I. Sebestian

• Publisher: John Wiley and Sons
• Year: 1969
• Tongue: English
• Weight: 207 KB
• Volume: 8
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.196904531

✦ Synopsis

phosphate buffer. The reaction mixture is then extracted with three 25-ml portions of ether. Distillation of the residue left by the dried ether solution at 20-22°C/0.05 torr gives 0.900 g (38 %) of ( 6 d ) as a pale yellow liquid.

Route B: 5.2 g (20 mmole) of (IOd) ( R 2 = C H 3 ) in 50 ml HzO is added dropwise with stirring t o 2.07 g (15 mmol) of K 2 C O 3 in 10 ml of H20 a t 40-45 "C. After one hour the filtered solution is extracted with four 40-ml portions of ether. Working up as for route A gives 1.722 g (55 %) of a yellow liquid that is identical with ( 6 d ) prepared via route A.