## Abstract A simple and convenient method for the condensation of paminophenol (I) with ^14^C‐acetic anhydride (II) yields up to 76% of ^14^C‐labelled 4‐hydroxyphenylacetamide (carbonyl‐^14^C) (III). Typical synthesis time is 60 minutes. Radioactive yield is 51%, and specific activity is 0.22 μCi/
The synthesis of C14 carbonyl labeled dimethyl phthalate
✍ Scribed by Barker, Donald Y. ;Christian, John E.
- Publisher
- Elsevier
- Year
- 1955
- Weight
- 309 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0095-9553
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
A two-step s y n t h e s i s of t h r e e carbonate and f o u r carbamate esters l a b e l e d a t t h e carbonyl with c a r n-14 i s described. The method u t i l i z e s t h e r e a d i l y a v a i l a b l e [' %I -phosgene which i s f i r s t converted t o an i s o l a b l e [14C] -labeled a l k
## Abstract A six step synthesis of dimethyl([^14^C]methylene)ammonium iodide (Eschenmoser's salt) is described. Sodium [2‐^14^C]acetate was used as the starting material. The overall yield of the final product was 30% with specific activity 8 mCi/mol.
## Abstract Carbonyl sulfide (COS) was prepared by a replacement reaction from potassium thiocyanate (KSCN) in 50% sulfuric acid. ^14^C‐COS or ^35^S‐COS can be prepared by the same method, depending on the position of the label in the starting KSCN. The yield of the final product is in excess of 60
## Abstract C^14^‐labelled O,N‐dimethylhydroxyurethane is synthesized from C^14^‐labelled dimethylsulfate and N‐hydroxy‐urethane. It is further converted without purification into O,N‐^14^‐C‐dimethyl‐hydroxylammoniumchloride, which was then nitrosated with sodiumnitrite in acidic medium to give N‐N
## Abstract O,S‐Dimethyl phosphoroamidothioate has been synthesized with ^32^P and with ^14^C in the methoxy and the S‐methyl group. Phosphorus trichloride was reacted with sulfur giving phosphorrus thiochloride. The latter was reacted with methanol in the presence of acridine and calcium oxide yie