3275-13-6Relevant articles and documents
Synthesis of ditopic ligands for the selective extraction of copper(II) nitrate and crystal structures of their Cu(II) complexes
Smuts, Hanna-Mari,Luckay, Robert C.
, p. 497 - 511 (2017/01/28)
We have synthesized two ditopic ligands for selective extraction of copper(II) nitrate. We also synthesized one cation-only binding analog for comparison. All three ligands were characterized by conventional techniques. Competitive two-phase metal ion sol
The generation of iminium ions using chlorosilanes and their reactions with electron rich aromatic heterocycles
Heaney, Harry,Papageorgiou, George,Wilkins, Robert F.
, p. 2941 - 2958 (2007/10/03)
Dichlorodimethylsilane and trichloromethylsilane have been used to generate iminium ions from aminals and aminol ethers derived from secondary alkylamines, including glycine derivatives, in aprotic media which were shown to undergo reactions with electron rich aromatic heterocycles, including furan, to give mono-aminoalkylation products in good yields. Whereas chlorotrimethylsilane has been shown to generate iminium ions from aminol ethers, no evidence was adduced for the involvement of iminium ions using aminals. 2,5-Disubstitution of N-methylpyrrole was the major result in reactions of N-methylpyrrole with aminals in the presence of chlorotrimethylsilane where no build up of hydrogen chloride occurs and where chlorotrimethylsilane can function catalytically. Experimental results, including the use of bis(trimethylsilyl)acetamide as a proton scavenger, and some relative rate data, are presented that allow possible mechanisms to be evaluated.
A New Convenient Synthesis of Dialkyl(methylene)ammonium Chloride
Rochin, C.,Babot, O.,Dunogues, J.,Duboudin, F.
, p. 228 - 229 (2007/10/02)
A new, convenient synthesis of dialkyl(methylene)ammonium chloride is proposed from gem-aminoethers and methyltrichlorosilane, a by-product of the industrial methylchlorosilane synthesis.
The synthesis of α-amino-substituted diphenylphosphine oxides
Broekhof, N. L. J. M.,Elburg, P. van,Gen, A. van der
, p. 312 - 316 (2007/10/02)
Four methods with differing but overlapping specificity are described for the synthesis of α-unsubstituted as well as α-substituted (aminomethyl)diphenylphosphine oxides.The first method is based on the Arbusov reaction, the second on a Mannich-type condensation of diphenylphosphine oxide with aldehydes and secondary amines, the third on the addition of Ph2P(O)H to enamines and the fourth on the reaction of anions derived from α-unsubstituted (aminomethyl)diphenylphosphine oxides with various electrophiles.