A number of 2-azetidinones were synthesized in good to excellent yields by a novel reaction between Schiff bases, substituted acetic acids and alkoxymethylene-N,N-dimethyliminium salts, the adduct formed from DMF and O-alkylating agents. The advantages of this new method are mild reaction conditions
Tetratolylstibonium Sulfate : A new reagent for the qualitative analysis of organic acids
β Scribed by H.E. Affsprung; A.B. Gainder
- Publisher
- Elsevier Science
- Year
- 1962
- Tongue
- English
- Weight
- 633 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0003-2670
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β¦ Synopsis
I'hc propcrtics of a tliffcrcntial mcmbranc clctcctor ccl1 combincd with the ion-exchange chromatographic: process have been cvaluatccl in the separation and clcterrnination of sodium and potassium, lint m&ho& cst propow% pour l'cnrcgistremcnt dcs courbcs d'&ution (appliqu6u ir la separation sodium-potassium par &zhangcur cl'ions). On utilisc unc ccllulc g membrane commc d6tecteur rliff&cnticl pour suivrc la composition dc l'C_luat. ., ZUS&MMENPASSUNG Ilic Eignung cincr Mcm1)ran-%cllc als Diffcrcntial-I>ctcktor fiir clic Zusammcnsctzung dcr Eluate
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