Preparation of Organopolysilanes

Dodecamethoxyneopentasilane as a New Building Block for Defined Silicon Frameworks

“…Although the first reports on the synthesis and derivatization of silyl anions was in the early 1930s, these compounds remained a laboratory curiosity [2] . This changed drastically with the pioneering works of Gilman et al ., who demonstrated that silyl anions are excellent buildings blocks for the synthesis of organosilanes [3,4] . Another milestone again achieved by Gilman and his group was the generation of the first oligosilyl anions 1 by reacting the corresponding oligosilane with methyllithium (Scheme 1).…”

Spectroscopic Evidence for the Structure of Isoxazolines and the Mechanism of their Formation1,2

“…The mixture usually became warm at the start and In 1931 Blatt5 showed that isoxazolines gave no methane on treatment with methylmagnesium iodide and on this basis assigned structure I to them. The same year Blatt and Stone6 showed that isoxazolines derived from substituted chalcones had (1) This work was supported by a grant from the Research Corporation of New York for the purchase of a Perkin-Elmer 12C infrared spectrometer.…”

Synthesis and structure of the donor-free potassium silanide K[SiPh3]

“…In particular, sterically encumbered organo-substituted silanides such as Li[Si(SiMetBu 2 ) 3 ] [7] or Na[SiMe(SitBu 3 ) 2 ] [8,9] proved to be very useful σ-donating ligands. First papers regarding the synthesis and reactivity of silanides M[SiR 3 ] were published by Gilman et al in the 1950s and 1960s [10,11]. Examples studied in detail were the triphenylsilanides M[SiPh 3 ] (M = Li, Na, K, Rb, Cs) [12,13].…”