Related Products of 499-40-1. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 499-40-1, Name is (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal. In a document type is Article, introducing its new discovery.
Transamination of di(pyrid-2-yl)amine (1) with B(NMe2) 3 leads to the isomeric heterocyclic bis(dimethylamino)boryl compound 4 and not to bis(diniethylamino)di(pyrid-2-yl)arninoborane (2). B(NMe 2)3 reacts with aniline (1:2 ratio) to yield a 1:1 mixture of B(NHPh)3 and (Me2N)2BNHPh. Transamination of this mixture with 1 yields the anihnodimethylamino analogue of 4 (compound 7). Compound 4 reacts with CHCl3 to generate the boronium salt 5 by the abstraction of HCl from CHCl3 and addition of HCl to one of the dimethylamino groups. Compound 5 crystallizes with 4 molecules of CHCl 3. Compound 4 is attacked by AlCl3 in toluene to give a mixture of unidentified products from which the tetrachloroaluminate of a new type of spirocyclic diboronium cation, 8, was isolated and characterized by X-ray crystallography. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics