64984-50-5Relevant academic research and scientific papers
The α-Vinylation of β-Dicarbonyl Compounds by Alk-1-enyl-lead Triacetates
Moloney, Mark G.,Pinhey, John T.
, p. 2847 - 2854 (2007/10/02)
Treatment of (E,E)-distyrylmercury (1) with lead tetra-acetate gave a mixture of (E)-styrylmercury acetate (3) and (E)-styryl-lead triacetate (2), which decomposed to (E)-styryl acetate (4) and lead(II) acetate.The vinyl-lead compound (2), generated in this way, reacted rapidly with β-keto ester (5) to give the α-(E)-styryl derivative (6) in synthetically useful yield.This procedure for the α-vinylation of (5) has been applied to the divinylmercury compounds (7)-(13), and to the synthesis of the α-(E)-styryl β-dicarbonyl compounds (28), (30), (32), and (34).Compounds (6), (28), (30), (32), and (34).Compounds (6), (28), (30), (32), and (34) have also been produced by reaction with lead compound (2) generated by reaction of tributyl-(E)-styrylstannane (36) and lead tetra-acetate.Isolation of the relatively stable cyclopent-1-enyl-lead triacetate (21b), and its reaction with keto ester (5) to give a quantitative yield of compound (18), provided evidence that vinyl-lead triacetates are the vinylating species.
THE CRYSTAL AND MOLECULAR STRUCTURE OF DI-trans-β-STYRYLMERCURY
Tecle, Berhan,Siddiqui, Kaniz F.,Ceccarelli, Christopher,Oliver, John P.
, p. 11 - 16 (2007/10/02)
The structure of di-trans-β-styrylmercury has been determined by single crystal X-ray methods from counter data.The compound crystallizes in the orthorhombic space group Pbcn with unit cell dimensions a 15.413(6), b 11.161(9), c 7.668(5) Angstroem, V 1319(1) Angstroem3, Dcalc 2.049 g/cm3, and Z = 4.The crystal was solved by conventional heavy atom techniques.The crystal consists of individual molecular units with the mercury atom located on a two fold axis of symmetry.The C-Hg-C fragment is nearly linear with an angle of 178 deg.The β-styryl groups are oriented so that a dihedral angle of 66.8 deg is formed between the planes defined by Hg-C(1)-C(2) and Hg-C(1)'-C(2)' fragments.The Hg-C bond distance is 2.07(4) Angstroem.
