161787-77-5

Upstream product

• 2083-91-2 N,N-Dimethyltrimethylsilylamine 
• 90-72-2 2,4,6-tris(dimethylaminomethyl)phenol 
• 64-17-5 ethanol 
• 394739-08-3 bis[2,4,6-tris((dimethylamino)methyl)phenoxy]bis(trimethylsilyl)silane 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 

Relevant academic research and scientific papers

Some Aspects of Chemistry of the N->Si Chelated Aryloxydihydrosilanes R(ArO)SiH2(R = Ph, ArO) and of the 2,2-Diaryloxytrisilane (Me3Si)2Si(OAr)2{ArO = 2,4,6-[(CH3)2NCH2]3C6H2O}

Reactions of the pentacoordinate aryldioxydihydrosilane Ph(Ar)SiH2 (1) with hydroxyl groups, carbonyl derivatives and PCl5 resulted in formation of new alcoxylated, phenoxylated and halogenated hydrosilanes Ph(ArO)(H)X (X = Cl, OR, OAr, OC(O)R), respectively. Treatment of the hexacoordinated (4+2) diaryloxydihydrosilane (ArO)2SiH2 (2) with N-chloro- or N-bromosuccinimide, trimethylsilyltriflate or iodine yielded the novel stable silicenium ion [(ArO)2(H)Si](1+)X(1-). Reactions of 2 with sulfur S8 and the transition metal complex Fe(CO)5 have resulted in the isolation of the new complexes (ArO)2Si = E [E = S, Fe(CO)4]. Decomposition modes of the tetracoordinate 2,2-diaryloxytrisilane (Me3Si)2Si(OAr)2 (3) on thermolysis and photolysis have also been studied; two pathways involving formation of the two silylenes (ArO)(Me3Si): and (ArO)2Si: have been identified by trapping experiments

Synthesis and Characterization of 2,4,6-Tris((dimethylamino)methyl)phenoxysilicon Compounds

A series of 2,4,6-tris((dimethylamino)methyl)phenoxysilicon compounds Σ4-nSi(OAr)n (Σ = Cl; n = 1 (1), 2 (2); Σ = Me, n = 1 (3), 2 (4); Σ = Me3Si, n = 1 (5), 2 (6), PhSiHn(OAr)33-n (n =2 (7), 1 (8)) and HnSi(OAr)4-n (n = 2 (9), 1 (10) has been synthesized by various adapted methods. The compounds were characterized spectroscopically by 29Si-, 1H-, 13C-, 15N-NMR. In solution the extent of Si...N bond formation and coordination in these compounds is determined from the 29Si-NMR (and 15N) chemical shifts and 1JSi-H. The silicon center is tetracoordinated in 3-6, pentacoordinated in 1, 2, 7, 8 and hexacoordinated [4+2] in 9. The 1H-NMR features are consistent, in all cases, with dynamic coordination mode of the o-NMe2 groups in solution at room temperature. The solid-state structures of the lithium phenolate and of compounds 6 and 9 have been determined by X-ray diffraction. The trimeric structure of ArOLi contains an Li3O3-ring that is almost perfectly planar; the structures of 6 and 9 confirm no N -> Si contact in 6 and a bicapped tetrahedral silicon in 9.