Producción Científica Profesorado

Synthesis and Structures of some Lithium and Sodium (Aminoalcoholato)hydrido Aluminates



Rojas Lima, Susana

2001

Heinrich Nöth, Andreas Schlegel and Susana Rojas-Lima. Synthesis and Structures of some Lithium and Sodium (Aminoalcoholato)hydrido Aluminates. Z. Anorg. Allg. Chem, 627, 1793-1800 (2001) . DOI: 10.1002/1521-3749(200108)627:8<1793::AID-ZAAC1793>3.0.CO;2-M


Abstract


LiAlH4 and NaAlH4 were allowed to react in a 1?:?1, 1?:?2 and 1?:?3 ratio with 2-dimethylaminoethanol, 1-dimethylamino-2-propanol, and ()-N-methylephedrine. Reactions in the 1?:?1 ratio leads to mixtures of M(AlH4n(OR?NMe2)n) in thf solution showing a temperature dependent composition. From the solutions obtained in a 1?:?2 or 1?:?3 ratio the following compounds were isolated as single crystals: (thf)NaAlH2? (OCH2CH2NMe2)2 (2), LiAlH2(OCHMeCH2NMe2)2 (3), LiAlH2(OCHPhCHMeNMe2)2 (4), LiAlH(OCH2CH2NMe2)3 (5), NaAlH(OCH2CH2NMe2)3 (6). All compounds are dimers in the solid state and their Al atoms are pentacoordinated. MHAl bridges were found only in the dihydridoaluminate 2.



Producto de Investigación




Artículos relacionados

Et3, and efficient Mediator for Xanthate Transfer Based Radical Processes.

Addition reaction of benzylbenzylidenenamine to lithium enolates of1,3-dioxolan-4-one: synthesis of ...

Synthesis of nitrogen-, oxygen- and sulphur-containing tripodal ligands with a trimethylbenzene core...

The Structural Chemistry of N-Monolithium Borazines

Synthesis of nitrogen-, oxygen- and sulphur-containing tripodal ligands with a trimethylbenzene core...

Phenylmethyl 2,3,4-tri-O-acetyl--D-fucopyranoside

Synthesis and Structures of some Lithium and Sodium (Aminoalcoholato)hydrido Aluminates

3-Benzoyl-2-isopropyl-4-alkyloxazolidin-5-ones as Efficient and Inexpensive Sources of Enantiopure ?...

Enantioselective synthesis of ?-amino acids. Part 11: Diastereoselective alkylation of chiral deriva...

Bis(acetylsalicylato-j2O,O00)diaquacadmium(II)