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Al 2 Me 6 + 3 H 2 O → Al 2 O 3 + 6 CH 4. Under controlled conditions, the reaction can be stopped to give methylaluminoxane: AlMe 3 + H 2 O → 1/n [AlMeO] n + 2 CH 4. Alcoholysis and aminolysis reactions proceed comparably. For example, dimethylamine gives the dialuminium diamide dimer: [7] 2 AlMe 3 + 2 HNMe 2 → [AlMe 2 NMe 2] 2 + 2 CH 4
Tetramethylammonium (TMA) is the simplest quaternary ammonium cation. It has the chemical formula [Me 4 N] + and consists of four methyl groups (−CH 3, denoted Me) attached to a central nitrogen atom. The cation is isoelectronic with neopentane (Me 4 C). It is positively-charged and can only be isolated in association with a counter-ion.
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. TMA-2 may be: TMA-2 mine; Soyuz TMA-2, a Russian ...
Trimethylamine (TMA) is an organic compound with the formula N(CH 3) 3. It is a trimethylated derivative of ammonia. TMA is widely used in industry. [5] [6] At higher concentrations it has an ammonia-like odor, and can cause necrosis of mucous membranes on contact. [7] At lower concentrations, it has a "fishy" odor, the odor associated with ...
It is much more potent than its positional isomer 3,4,5-trimethoxyamphetamine (3,4,5-TMA, TMA, or TMA-1), which is said to be active at doses of 100 to 250 mg and to have a duration of 6 to 8 hours. [3] However, DOM (2,5-dimethoxy-4-methylamphetamine), the analogue of TMA-2 in which its 4-methoxy group has been replaced with a more lipophilic 4 ...
A TMA-2. The TMA-2 is a rectangular plastic cased Yugoslavian minimum metal anti-tank blast mine.It is very similar in appearance and size to the PT-56, which it replaced.The mine consists of two sections, an upper ribbed pressure plate with two large circular fuze caps, and a lower base section containing the main charge and two primary fuze wells containing UANU-1 fuzes.
The most important TMA compound from a pharmacological standpoint is TMA-2, as this isomer has been much more widely used as a recreational drug and sold on the grey market as a so-called research chemical; TMA (sometimes referred to as "mescalamphetamine" or TMA-1) and TMA-6 have also been used in this way to a lesser extent.
In the organometallic chemistry reaction of nucleophilic abstraction, Me 3 NO is employed as a decarbonylation agent according to the following stoichiometry: M(CO) n + Me 3 NO + L → M(CO) n−1 L + Me 3 N + CO 2. This reaction is used to decomplex organic ligands from metals, e.g. from (diene)Fe(CO) 3. [13]