Tetrahedron letters

Preparation and reactions of 1, 1, 4, 4-tetrakis (trimethylsilyl) butane-1, 4-diyl dianion

M Kira, T Hino, Y Kubota, N Matsuyama, H Sakurai

Index: Kira, Mitsuo; Hino, Takakazu; Kubota, Yasushi; Matsuyama, Naoko Tetrahedron Letters, 1988 , vol. 29, # 52 p. 6939 - 6942

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Citation Number: 28

Abstract

1 was prepared by the reaction of tris(trimethylsilyl)methyllithium and paraformaldehyde in THF Chem. Ber., 110 (1977), p. 852 3: 1 H NMR (CDCl3) δ -∮.37 ∼ −0.21 (2H, m) 0.10 (36H, s), −1.43 ∼ 1.59 (4H, m); 13 C NMR (CDCl 3 ) δ 0.5 (q), 15.6 (d), 30.5 (t); 29 Si NMR (CDCl 3 ) δ 2.8; MS (12 eV) m/z (rel intensity) 346 (M+, 0.4), 243 (53), 173 (100), 85 (79), 73 (23). Found: m/z 346.236. Calcd for C 16 H 42 Si 4 : M, 346.236. ... 4a: 1 H NMR (CDCl 3 ) δ 0.16 ...