𝔖 Bobbio Scriptorium
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The interchange of14C-kinetin and14C-gibberellic acid between the bark and xylem of willow

✍ Scribed by M. R. Bowen; P. F. Wareing

Book ID
104750463
Publisher
Springer-Verlag
Year
1969
Tongue
English
Weight
944 KB
Volume
89
Category
Article
ISSN
0032-0935

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✦ Synopsis

Considerable two-way interchange of label derived from (14)C-GA3 and (14)C-kinetin has been shown to occur between the xylem and extra-cambial tissue of Salix viminalis L. Radial translocation of both growth substances from the transpiration stream to the sieve-tube sap has been demonstrated by the use of an aphid technique. This is the first record of the bark-xylem interchange of these two growth hormones.A high percentage of (14)C-label is present in compounds other than GA3 and kinetin 8 hours after application.Mechanisms of lateral transfer are discussed together with their possible physiological significance.

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[14C]Dimethyltitanocene and [14C]Methyl(
[14C]Dimethyltitanocene and [14C]Methyl(methyltrimethylsilyl) titanocene–Reagents for the [14C]olefination of carbonyl compounds: synthesis of [14C]Aprepitant
✍ M. A. Wallace; D. C. Dean; D. G. Melillo πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 French βš– 135 KB

## Abstract A neurokinin (NK‐1) receptor antagonist, [^14^C]Aprepitant, was synthesized using two labeled olefination reagents: [^14^C]dimethyltitanocene 1 and [^14^C]methyl (methyltrimethylsilyl)titanocene 7. Both reagents can be readily prepared from [^14^C]methyllithium and have been shown to co