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

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

r-Alkylation of (S)-Asparagine with Self-Regeneration of the Stereogenic Center: Enantioselective Sy...

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

Facile synthesis of 1,3,6-oxadiazepines from 2,2?-(1,2-ethanediyldiimino)bisphenols

Furocoumarins of three species of the genus Dorstenia

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

Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reactio

An efficient potassium cyanide-promoted synthesis of 2-arylbenzoxazoles from [4.3.0]boron heterobicy...

Structure-Activity Relationships for Inhibition of Cysteine Protease Activity and Development of Pla...

Further insight into three center hydrogen bonding. Participation in tautomeric equilibria of hetero...