RING-OPENING OF THIOPHENE - SYNTHESIS AND CRYSTAL-STRUCTURE OF BIS(DIETHYL THIOLATO(2-)-KAPPA-S-KAPPA-S-KAPPA-S))TETRALITHIUM ME2-N(LI)-SIME2-C-C-CH=CH-SLI-CENTER-DOT-OET2](2))
M. Veith et al., RING-OPENING OF THIOPHENE - SYNTHESIS AND CRYSTAL-STRUCTURE OF BIS(DIETHYL THIOLATO(2-)-KAPPA-S-KAPPA-S-KAPPA-S))TETRALITHIUM ME2-N(LI)-SIME2-C-C-CH=CH-SLI-CENTER-DOT-OET2](2)), Helvetica chimica acta, 81(9), 1998, pp. 1640-1644
Double lithiation of hienyl)silyl]-1,1-dimethyl-1-(2-thienyl)silanamin
e ((C4H3S)-SiMe2-N(H)-SiMe2-(C4H3S); 1) leads, via ring opening of one
thiophene moiety, to the title compound 2 [(C4H3S)-SiMe2-N(Li)-SiMe2-
C=C-CH=CH-SLi.OEt2](2)) which is characterized by an X-ray structure d
etermination.