In the title compound, C(20)H(30)N(2) (2+)·2Br(-)·2H(2)O, the asymmetric unit consists of half of the N,N'-dibenzyl-N,N,N',N'-tetra-methyl-ethylenediammonium cation lying across an inversion center, a bromide ion and a water mol-ecule of solvation. There is an eight-membered dibromide dihydrate ring, which is formed via hydrogen bonds of the type O-H⋯Br.

An extremely facile and efficient procedure which has been developed for the synthesis of dihydropyrrol-2-ones. One-pot four-component reaction of amines, dialkyl acetylenedicarboxylates and formaldehyde in the presence of N,N,N,N-tetramethylguanidinium acetate [TMG][Ac] in methanol at ambient temperature provides substituted dihydropyrrol-2-ones in good to high yields. The important aspects of...

Inc Sm(1)(TIIFh reacts with mcthylllthlUm In TIIF In the prese nce of lclram c lhyt c lhy lcn c d lamln e, TMEDA , 10 gIve 1[1 .J(l ·MI :I)A)h[Sm«('I I)61}. J'IIF. Tl1c complex has been ch;lractcnzcd hy elemenl al analyses, lit spectrum and magnetic mcasurem ent . Molecular .lOd clymsl .SruClUrc of thl! complcx hoo been determmed by a sIngle cryst .. ! X - ray diffractIOn . The crystalS ar...