𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preparation of tritium-labelled D,L-2,6-diaminopimelic acid

✍ Scribed by J. Hanuš; K. Vereš

Publisher
John Wiley and Sons
Year
1971
Tongue
French
Weight
278 KB
Volume
7
Category
Article
ISSN
0022-2135

No coin nor oath required. For personal study only.

✦ Synopsis

On hydrogenation of the 2,6-bis(phenylhydrazone) of 2,6-diketopimelic acid with carrierfree tritium a very low specijic activity was achieved, due to the labile C-T-bonds in the a-positions. 2,6-Di~minopimelic-4-~H acid of spec. activity 790 mCilmmole was obtained by catalytic dehydrohalogenation of 4-chloro-2,6-diaminopimelic acid in I N ammonia. A new, simple apparatus for catalytic tritiation is also described.

📜 SIMILAR VOLUMES

Preparation of tritium labelled L-phenyl
Preparation of tritium labelled L-phenylalanine
✍ Ch. Gerday; W. G. Verly 📂 Article 📅 1968 🏛 John Wiley and Sons 🌐 French ⚖ 204 KB

Tritiated N-chloracetyl-DL-phenylalanine, obtained by reduction of the N-chloracetyl-dehydrophenylalanine with tritiated hydrogen, is hydrolysed by carboxypeptidase A . The method gives L-phenyl-al~nine-2,3-~H of high optical purity and with any specific activity up to 60 curies per millimole.

Synthesis of tritium labelled [2′,6′]-L-
Synthesis of tritium labelled [2′,6′]-L-tyrosine
✍ W. Augustyniak; R. Kański; M. Kańska 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 French ⚖ 85 KB

## Abstract The synthesis of a specifically ring labelled isotopomer of L‐tyrosine, (L‐Tyr), using a combination of chemical and enzymatic methods is reported. The tritium labelled [2′,6′]‐L‐Tyr has been synthesized __via__ catalytic exchange of phenol with tritiated water in the presence of K~2~Pt

Preparation of tritium-labelled jasmonic
Preparation of tritium-labelled jasmonic acid, ethyl dihydrojasmonate and itaconic acid
✍ U. Pleiß; A. Teich; M. Stock; D. Groß; H. R. Schütte 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 French ⚖ 227 KB

## Abstract A method for tritium labelling of jasmonic acid, ethyl dihydrojasmonate, and itaconic acid involving metal catalyzed hydrogen isotope exchange is described. The procedure is a convenient one‐step synthesis and specific activities in the range of 3 to 30 GBq/mmol were obtained.

The synthesis of specifically 14C-labell
The synthesis of specifically 14C-labelled 2,6-diaminopimelic acid and its higher homologues
✍ J. Hanuš; K. Vereš 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 French ⚖ 398 KB

## Abstract D,L‐2,6‐Diaminopimelic‐(2‐^14^C) acid was prepared by alkylation of diethyl acetamidomalonate‐(2‐^14^C) with 5‐bromo‐N‐phthaloyl‐L‐norvaline methyl ester and hydrolysis of the condensation product. Depending on the alkylation conditions, partial or complete racemisation takes place and

Preparation of tritium-labelled dextran
Preparation of tritium-labelled dextran and inulin
✍ G. P. Akulov; Ju. L. Kaminski; N. A. Korsakova; B. K. Kudelin 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 French ⚖ 143 KB

## Abstract Tritiated dextran and inulin were prepared by both a catalytic solid state and a liquid phase isotope exchange with gaseous tritium. The liquid phase procedure is convenient for preparation of the polysaccharides with specific activities up to 5 mCi/g, while the solid state procedure al