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Heat capacities of anhydrous ammonium oxalate and oxalic acid and their crystallohydrates

✍ Scribed by S.V. Dalidovich; E.A. Gusev; V.A. Shandakov; A.A. Vecher

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
182 KB
Volume
89
Category
Article
ISSN
0040-6031

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Preparation of [11C]diethyl oxalate and
Preparation of [11C]diethyl oxalate and [11C]oxalic acid and demonstration of their use in the synthesis of [11C]-2,3-dihydroxyquinoxaline
✍ Jan-Olov Thorell; Sharon Stone-Elander; Nils Elander πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 French βš– 469 KB

## Abstract A method for the production of two new carbon‐11 labelled difunctional radiolabelling precursors, [^11^C]diethyl oxalate, 2, and [^11^C]oxalic acid, 3, is described. Methyl chloroformate was reacted with no‐carrier‐added [^11^C]cyanide to generate the intermediate nitrile, methyl [^11^C