α-Hydroxymethylation of Schiff Bases Derived from α-Amino Acid Esters

Synthesis ◽  
1981 ◽  
Vol 1981 (06) ◽  
pp. 445-447 ◽  
Author(s):  
Anna Calcagni ◽  
Domenico Rossi ◽  
Gino Lucente
Keyword(s):  
Amino Acid ◽  
Schiff Bases ◽  
Amino Acid Esters ◽  
Acid Esters

Metal Complexes of Biologically Important Ligands, CLXXIV [1]. Palladium(II) and Platinum(II) Complexes with Schiff Bases from 2-(Diphenylphosphino)benzaldehyde and α-Amino Acid Esters

2010 ◽  
Vol 65 (4) ◽  
pp. 503-510 ◽  
Author(s):  
Bernhard Schreiner ◽  
Christian Robl ◽  
Barbara Wagner-Schuh ◽  
Wolfgang Beck
Keyword(s):  
Schiff Base ◽  
Amino Acid ◽  
Schiff Bases ◽  
Ester Group ◽  
Amino Acid Esters ◽  
X Ray Diffraction ◽  
Tridentate Ligands ◽  
X Ray ◽  
Reduced Schiff Base ◽  
Acid Esters

A series of palladium(II) and platinum(II) complexes Cl2M(P-N-O) (M = Pd, Pt) with bidentate Schiff bases (P-N-O) from 2-(diphenylphosphino)benzaldehyde and α-amino acid esters has been synthesized, using PdCl2 or K[PtCl3(C2H4)], respectively. Abstraction of chloride from Cl2M(P-N-O) (using AgBF4) has afforded the cationic complexes [(P-N-O)M(Cl)]+BF4− in which the Schiff bases function as tridentate ligands with coordination of the ester group. The structures of Cl2Pd(Ph2PC6H4C(H)=N-CH2CO2Et) and of [(Cl)Pd(Ph2PC6H4C(H)=NC(H)(CH2CH=CH2)CO2Me)]+BF4− have been determined by X-ray diffraction. Complexes (L)MCl2 and [(L)MCl]+BF4 (M = Pd, Pt) have also been prepared with the reduced Schiff base Ph2PC6H4CH2NHC(H)(CH2Ph)CO2Me.

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