## Abstract Polyvinyl acetate phthalate‐^14^C~1~ (PV AP) was prepared by condensing radioactive phthalic anhydride with polyvinyl alcohol\*. The radioactive anhydride was prepared from ethyl anthranilate The chemical purity and the authenticity of the PV AP so prepared was ascertained by a comparis
Enzymatic preparation of ( 4- hydroxyphenyl ) acetic acid-1 -14C
✍ Scribed by S. Kristensen
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- French
- Weight
- 82 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Rece-ved o n J u l y 6 , 1973 4 -H y d r o x y p h e n y l a c e t i c a c i d (HAA) i s a n i n t e r m e d i a t e i n
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## Abstract The synthesis of 3‐indolylacetic acid labelled with ^14^C in side chain carbon atoms has been effected using (1‐^14^C)glycolic acid, (1,2‐^14^C~2~)glycolic acid and (2‐^14^C)glycolic acid in an yield of 40‐60%. Some of the parameters that affect the synthesis have been studied and the r
## Abstract The pyrolysis of citric acid‐1, 5‐^14^C~2~ under controlled conditions and subsequent hydrolysis of the anhydride initially produced yields principally 2‐methylenebutanedioic acid‐4‐^14^C (citaconic acid‐^14^C), together with a minor amount of cis‐2‐methylbutenedioic acid‐4‐^14^C (citra
## Abstract An operationally simple preparation of glycolic‐1‐^14^C acid from ^14^CO~2~ has been developed using a tin‐lithium exchange reaction to generate the required hydroxymethyl anion equivalent. Glycolic‐1‐^14^C acid was then produced in high yield and good radiochemical purity upon hydrogen
## Abstract Aflatoxin B~1~‐^14^C was produced by resting cell cultures of __Aspergillus flavus__ (NRRL 3145) from a sodium acetate ‐ 1, 2‐^14^C precursor. A specific activity of 455 uCi/uM was determined for the purified aflatoxin B~1~‐^14^C.
## B i o l o g i c a l l y l a b e l l e d [l-14C) g l y c e r o l ( L -[ l -' " C ) g l y c e r o l ) 048 prepared by a two s t e p p r o c e s s . S t e p one i n v o 1 v e d t h e p r e p a r a t i o n of [I -C ] g 2 y ce r o 1 3 -p ho sp ha t e from l4C02 and D-ribuloee 1,5 -diphoephate u s i