Simplified Process for Preparation of Anhydrides of Aromatic Acids
✍ Scribed by Dr. P. Rambacher; S. Mäke
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- English
- Weight
- 127 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract We describe a simple and efficient enzymatic tandem reaction for the preparation of enantiomerically pure __β__‐phenylalanine and its analogues from the corresponding racemates. In this process, phenylalanine aminomutase (PAM) catalyzes the stereoselective isomerization of (__R__)‐__β__
Use of hydrochloric acid in place of sulfuric acid results in a reaction in which the chloride ion takes part. [41 We obtained (36) analogously from (Zb).
Two ether-sulfone-dicarboxylic acids, 4,4 -[sulfonylbis(2,6-dimethyl-1,4phenylene) dioxy]dibenzoic acid (Me-III) and 4,4-[sulfonylbis(1,4-phenylene)dioxy]dibenzoic acid (III), were prepared by the fluorodisplacement of 4,4-sulfonylbis(2,6dimethylphenol) and 4,4-sulfonyldiphenol with p-fluorobenzoni