## 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/
Synthesis and characterization of carbon-14 labelled 4, 4′- diaminodiphenyl sulfone (dapsone-14C; DDS-14C)
✍ Scribed by C. E. Blackburn; A. J. Glazko
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- French
- Weight
- 206 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
SYNTtIESIS AHD CHARACTERIZATION
OF CARBON-14 LABELLED 4,4'-DIAMINODIPHENYL SULFONE (DAPSONE-l4C; D 3 S -1 4 C > , C.E. B l a c k b u r n and A.J. G l a z k o . D e p a r t m e n t o f P h a r m a c o l o g y . D i v i s i o n of S c i e n t i f i c and M e d i c a l Affairs. P a r k e -D a v i s C o m p a n y , A n n A r b o r , M i c h i g a n , U. S . A. R e c e i v e d on J u l y 9, 1971.
SUMMARY
4,4 ' -D i a m i n o d i p h e n y l -1 4 C s u l f o n e * ( D D S -1 4 C I was s y n t h e s i a e d i n f o u r s t e p s . U n i f o r m l y c a rbon-14 l a b e l l e d a n i l i n e h y d r o c h l o r i d e was f i r s t a c e t y l a t e d t o y i e l d a c e t a n i l i d e (phenyl-"CI.
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## Abstract Two labeled isotopomers of L‐tyrosine, L‐Tyr, have been synthesized using specific properties of the enzymes phenylanine ammonia lyase, PAL, and L‐phenylalanine hydroxylase. In an intermediate step [1‐^14^C]‐, and [2‐^14^C]‐L‐phenylalanine, L‐Phe, have been obtained from [1‐^14^C]‐, and
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