✦ LIBER ✦

Synthesis of tritium-labelled d.l-coniine

✍ Scribed by Wilhelm W. Just; Volker Böhnisch; Gottfried Werner

Publisher: John Wiley and Sons
Year: 1976
Tongue: French
Weight: 197 KB
Volume: 12
Category: Article
ISSN: 0022-2135
DOI: 10.1002/jlcr.2580120218

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

D.l‐Coniine was labelled with tritium in the ring by catalytic hydrogenation of 2‐propylpyridine using Adams‐catalyst in the presence of acetic acid.

📜 SIMILAR VOLUMES

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

Synthesis of tritium labelled precocenes

✍ A. Banerji; N. C. Goomer 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 200 KB 👁 1 views

## Abstract Regiospecific syntheses of tritium labelled precocene I (**5a**) and precocene II (**5b**), the antijuvenile hormones, have been accomplished. The syntheses involved condensations between 2‐hydroxyacetophenones (**1**) with acetone‐T to give cross condensation products **2** which on cy

Synthesis of tritium labelled catechol

✍ K. K. Hwang; B. Bhooshan; R. E. Kouri; C. J. Henry 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 French ⚖ 154 KB 👁 1 views

## Abstract The preparation of tritium labelled catechol by catalytic reduction of tetrabromocatechol is described. Recrystallization of catechol (U‐^3^H) after silica gel column purification gave 68% yield of the desired product with 98% purity as assayed by high performance liquid chromatography.

Synthesis of tritium labelled zaleplon

✍ V.P. Shevchenko; I.Yu. Nagaev; N.F. Myasoedov; A. Susan 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 French ⚖ 73 KB 👁 1 views

## Abstract The reaction conditions for the incorporation of tritium into zaleplon have been investigated. The methods studied were the catalytic isotope exchange reaction with tritium gas and catalytic isotope exchange reaction with tritiated water. The results showed that the latter method was th

Synthesis of tritium labelled sparsomyci

Synthesis of tritium labelled sparsomycin

✍ Leon A. G. M. Van Den Broek; Kitty C. M. W. Willemsen; Irene H. G. Schlachter; H 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 French ⚖ 249 KB 👁 1 views

Synthesis of tritium labelled mecillinam

✍ Søren Melsing Frederiksen; Gunnar Grue-Sørensen 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 French ⚖ 96 KB 👁 1 views

## Abstract The potent __β__‐lactam antibiotic mecillinam has successfully been labelled with tritium. 2,3,4,7‐Tetrahydro‐1H‐azepin‐1‐carbaldehyde was formed in a ring‐closing metathesis reaction and then condensed with trimethylsilyl protected penicillanic acid to give dehydro‐mecillinam. Pd/C cat