ChemInform Abstract: Synthesis of 2‐Functionalized N,N′‐Dialkylimidazolium Salts from Glyoxal and Alkylamines.

Abstract

The diazadienes (I) which are easily prepared from aqueous glyoxal and the corresponding primary alkylamines (as described in the literature) react with dry hydrogen Chloride in non‐aqueous solvents to form the azomethine derivatives (II) of the corresponding 2‐formylimidazolium chlorides.

Sterically Crowded, Rigid,C3Symmetric Phosphites: Synthesis, Structure, and Preparation of Metal Complexes

“…The most striking aspect of the structure is the unusual nonplanarity observed between the two palladium planes at the vector joining the two chlorine bridges (Figure inset). To the best of our knowledge, this motif is unprecedented for the M 2 Cl 4 P 2 system (M = Ni, Pd, Pt; P = phosphorus moiety) and has been observed only twice previously; for Pd 2 Cl 4 L 2 [L 2 = ( R , R )-1,5-bis{ o -( p -toluenesulfinyl)phenoxy}-3-oxapentane and L = 1,3-di- tert -butyl-2,2-dimethyl-1,3-diaza-2-sila-cyclopentene] . The coordination environment of the palladiums are square planar, with no atom deviating from a least squares plane drawn through Pd(1), P(1), Cl(1), Cl(2a), and Cl(2b) by more than 0.119(1) and 0.091(1) Å for the A and B palladiums (Figure ).…”

“…33 and L ) 1,3-di-tertbutyl-2,2-dimethyl-1,3-diaza-2-sila-cyclopentene]. 34 The coordination environment of the palladiums are square planar, with no atom deviating from a least squares plane drawn through Pd(1), P(1), Cl(1), Cl(2a), and Cl(2b) by more than 0.119(1) and 0.091(1) Å for the A and B palladiums (Figure 4). The butterfly angle formed between these two planes is 38.06(6)°.…”