โ Scribed by G. John Shaw
No coin nor oath required. For personal study only.
transโ4โOcteneโ1,1,1โ^2^H~3~; โ2,2โ^2^H~2~; โ3,3โ^2^H~2~ and โ4โ^2^H~1~ have been synthesized. The electron impact mass spectra and isotopic enrichment of these compounds have been measured and are reported.
๐ SIMILAR VOLUMES
The protons at 3-positions of diazepam 4-oxide and nordiazepam 4-oxide underwent an efficient deuterium exchange via keto-enol tautomerism in deuterated alkaline methanol. The 3-dideuterated 4-oxides were each used as a starting material to synthesize 3-monodeuterated oxazepam and its 3-acetate, 3mo
The relative OH reaction rates from the simulated atmospheric oxidation of 4-methyl-2pentanone, trans-4-octene, and trans-2-heptene have been measured. Reactions were carried out at 297 t 2 K in 100-liter FEP Teflon"-film bags. The OH radicals were produced from the photolysis of methyl nitrite. The
## Abstract Specifically deuterated Nโacetylโ6โhydroxyโ5โmethoxytryptamine has been synthesised. The mass spectra of the labeled and unlabeled analogs are reported.
## Abstract [6ฮฒโ^2^H] Testosterone and [6ฮฒโ^3^H] Testosterone were each synthesized in good yield in three steps: Treatment of 5a, 6aโ epoxyโ3, 3โethyleneโdioxyandrostan โ17ฮฒโol with labelled lithium aluminum hydride is followed by deacetalation and dehydration under carefully controlled basic cond
## Abstract To elucidate the deuterium isotope effect (DIE) in pheromonal activity and to investigate the biosynthetic pathway of 4,8โdimethyldecanal (4,8โDMD; **1**), the aggregation pheromone of the red flour beetle (__Tribolium castaneum__), deuterated analogues of 4,8โDMDs (**2**, **3**, **4**,