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2,6-Dimethylnaphthalene is mainly used for the preparation of 2,6-naphthalenedicarboxylic acid by oxidation of 2,6-dimethylnaphthalene in the liquid phase. 2,6-Naphthalenedicarboxylic acid is a monomer for the production of high-performance polymers, in particular poly (ethylene-2,6-naphthalene dicarboxylate) or shorter polyethylene naphthalate (PEN). [4]
It was first prepared by Robert Evert and Victor Merz in 1876 by hydrolysis of 2,6-dicyanonaphthalene. [2] [3] 1,8-Naphthalenedicarboxylic acid can be isomerized to 2,6-naphthalenedicarboxylic acid via the intermediacy of the dipotassium dicarboxylates. [2] It is also produced by oxidation of 2,6-diisopropylnaphthalene. [4]
Shulgin explains in his book that DMMDA has 6 isomers similar to TMA. [1] DMMDA-2 is the only other isomer that has been synthesized as of yet. DMMDA-3 could be made from exalatacin (1-allyl-2,6-dimethoxy-3,4-methylenedioxybenzene). Exalatacin can be found in the essential oil of both Crowea exalata and Crowea angustifolia var. angustifolia. [6]
2,5-Dimethoxy-4-cyanoamphetamine (DOCN) is a serotonergic drug of the phenethylamine, amphetamine, and DOx families. [1] [2] [3] It is a DOx derivative with a cyano group (–C≡N) at the 4 position of the molecule. [1] [2] [3] The drug shows much lower affinities for the serotonin 5-HT 2 receptors than other DOx drugs.
A solution of lithium naphthalenide, the lithium salt of naphthalene, in tetrahydrofuran. The alkali metal naphthalene salts are prepared by stirring the metal with naphthalene in an ethereal solvent, usually as tetrahydrofuran or dimethoxyethane. The resulting salt is dark green. [2] [3] [4] The anion is a radical, giving a strong EPR signal ...
DMCM (methyl 6,7-dimethoxy-4-ethyl-β-carboline-3-carboxylate) is a drug from the β-carboline family that induces anxiety and convulsions by acting as a negative allosteric modulator of GABA A receptors — functionally opposite to benzodiazepines and related drugs which are positive allosteric modulators — and is used in scientific research for these properties to test new anxiolytic and ...
DMTMM (4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methyl-morpholinium chloride) is an organic triazine derivative commonly used for activation of carboxylic acids, particularly for amide synthesis. Amide coupling is one of the most common reactions in organic chemistry and DMTMM is one reagent used for that reaction.
[6] Synthese von 2-Carboxybenzaldehyd aus o-Xylol. The hydrolysis of the pentachloroxylene to the 2-carboxybenzaldehyde is carried out by boiling it with FeCl 3-containing hydrochloric acid. [7] In the reaction of phthalic anhydride with sodium tetracarbonylferrate, only one of the carboxyl groups is reduced to the aldehyde, the second remains ...