99558-03-9Relevant academic research and scientific papers
α-Alkylation of Amines via a 1,5-Hydrogen Shift
Undheim, Kjell,Williams, Lorenzo
, p. 883 - 884 (1994)
Radicals derived from N-(2-iodobenzyl) 'protected' amines undergo a 1,5-hydrogen shift to give more stable α-amino radicals, which can be subsequently trapped by electron deficient alkenes.
Radioiodinated analogs of xylamine: N-(2-chloroethyl)-N-ethyl-2-[125I]iodobenzylamine and N,N-diethyl-2-[125I)iodo benzylamine as potential tools for monoamine uptake exploration by SPECT
Branger,Garreau,Frangin,Chalon,Dubois,Dognon,Ombetta-Goka,Besnard,Guilloteau
, p. 685 - 699 (2007/10/02)
In order to improve the scintigraphy and radiotherapy of neuroendocrine tumors we synthesized two radioiodinated benzylamines [N-(2-chloroethyl)-N-ethyl-2-[125I]iodobenzylamine and N,N-diethyl-2-[125I]iodobenzylamine], analogs of xylamine [N-(2-chloroethyl)-N-ethyl-2-methylbenzylamine]. Xylamine is an irreversible inhibitor of uptake and accumulation of noradrenaline. The two unlabelled iodinated derivatives [N-(2-chloroethyl)-N-ethyl-2-iodobenzylamine and N,N-diethyl-2-iodobenzylamine] were synthesized, purified and checked by HPLC, NMR and mass spectrography. Their affinity for the noradrenaline transporter was determined in vitro on rat brain membrane homogenates with [3H]nisoxetine. Radioiodination was performed by iodide for bromide nucleophilic exchange from brominated precursors. The N,N-diethyl-2-[125I]iodobenzylamine was obtained directly from N,N-diethyl-2-bromobenzylamine. Radiosynthesis of N-(2-chloroethyl)-Nethyl-2-[125I]iodobenzylamine required three steps. A new brominated precursor [N-ethyl-N-(2-bromobenzyl)glycine ethyl ester] which was stable for radiolabelling and suitable for reduction to N-(2-hydroxyethyl)-N-ethyl-2-[125I]iodobenzylamine was synthesized. N-(2-Hydroxyethyl)-N-ethyl-2-[125I]iodobenzylamine was converted to N-(2-chloroethyl)-N-ethyl-2-[125I]iodobenzylamine in the presence of an excess of thionyl chloride. Radioiodinated derivatives were purified and checked by HPLC.
An approach to α-substituted amines
Williams, Lorenzo,Booth, Susan E.,Undheim, Kjell
, p. 13697 - 13708 (2007/10/02)
A number of amines have been alkylated at the position alpha to nitrogen via free radical methodology. N-(2-iodobenzyl) and N-(2-iodobenzoyl) 'protected' amines have been used to generate radicals which rapidly undergo a 1,5-hydrogen shift to give more st
Generation and Alkylation of Carbanions α to the Nitrogen of Amines by a New Metalation Procedure
Murakami, Masahiro,Hayashi, Minoru,Ito, Yoshihiko
, p. 793 - 794 (2007/10/02)
Treatment of a tertiary amine having a pendent o-iodobenzyl group on nitrogen with SmI2 generates α-amino organosamarium, which reacts with electrophiles giving the corresponding C-C bond formation products in good yield.
11H-Isoindoloindol-11-ones: Novel Rearrangement Products from the Attempted Preparation of 2-(2-Diethylaminomethylphenyl)isatogens
Hooper, Malcolm,Imam, S. Haider
, p. 1583 - 1588 (2007/10/02)
The attempted synthesis of 2-(2-diethylaminomethylphenyl)isatogens, from appropriately substituted phenylacetylenes and aromatic iodo compounds by two different routes gave novel substituted 11H-isoindoloindol-11-ones (6a-d) as the only identifiabl
