138748-18-2Relevant academic research and scientific papers
Trimethylstannyl- and Dimethylstannyl-substituted Pyrroles-Synthesis, Spectra, and Structures
Hillmann, J.,Hausen, H.-D.,Schwarz, W.,Weidlein, J.
, (2008/10/08)
Monomeric trimethylstannyl pyrroles, Me3SnR (Me=CH3 and R=-NC4H4, -NC4H2Me2-2,5, -NC4Me4-2,3,4,5, -C4H3NMe-1), are synthesized by metathesis reactions from Me3SnCl with 1(N)- and 2(C)-lithiumpyrroles, respectively. An almost similar procedure gives monomeric dimethylstannylbis(pyrroles),Me2SnR2 (1a-3a), from Me2SnCl2 and 1-Li-pyrrolides (1:2 molar ratio) in good yields. Lithiated 1,2,5-trimethylpyrrole and Me3SnCl forms the com pound Me3Sn-CH2-C4H2Me(-5)NMe (8), the reaction of Me2SnCl2 with 2-lithium-1-methylpyrrole gives oligomeric [Me2Sn-C4H2NMe-]x, (6a). The mass-, NMR, and vibrational spectra have been measured and discussed. The results of the X-ray structure determinations of Me3Sn-NC4H4 (1) and Me2Sn(-NC4Me4)2 (3a) are compared with the structure of the known dimethylmetal pyrroles of Al, Ga, and In.
