Tetrahydropalmatine (2,3,9,1O-tetramethoxy-5,6,13,13a-tetrahydro-8H-dibenzo-[a,gl-quinoliz~ne) (TIiP) has been found to have analgetic and sedative effect sulfonate (THP-W), which is soluble in water, i s i n t e r e s t i n g i n a p p l i c a t i o n a s a t r a n q u i l i z e r . ## ') . Tetrah
Microbiological preparation of 3H-labelled methane
โ Scribed by Kenneth A. Sandbeck; William S. Reeburgh
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- French
- Weight
- 316 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
โฆ Synopsis
Small quantities of tritiated methane were prepared by fermenting [methyl-3Hl methylamine hydrochloride using exponential phase, transiently starved, co-cultures of methanogenic bacteria. This method gave the expected 75% yield of C3H4 from the substrate and produced H2-free, low 3H20 background C3H4 for tracer studies.
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The first, involving a reversible ene reaction yielded 10-deuteriocarvone with some substitution at other reactive centres, An improverent to this route involved the decomposition of an organozinc reagent of 10-chlorocarvone which gave a better yield of product substituted only at C-10, As a prelini
## Abstract ^3^HโOchratoxins A, B, and C were obtained by tritiation of the toxins with tritiated water in acetic acid and platinum at 80ยฐ C overnight. The toxins were purified by solvent partition and thin layer chromatography with the recovery yield being 80% and the specific activity being 2.6 โ
## Abstract ^3^Hโ and ^14^CโLabelled ethynodiol diacetate, chlormadinone acetate, and medroxyprogesterone acetate with one label at the steroid nucleus and the other at the acetoxy group were prepared for use in studies of regioโ and stereospecificity of metabolic hydrolysis of the steroid contrace
## Abstract Benzene oxide โ[Uโ^14^C] was prepared from benzene โ(Uโ^14^C) by modifications of methods described for the inactive compound. Benzene oxideโ[3.6โ^3^H] was prepared by decomposition of 3.6โbisโtrimethylsilylโ1,4โcyclohexadiene with tritiated water. bromination of the 1,4โcyclohexadiene