Chloromethyl trichlorosilane

Among the Friedel-Crafts alkylations of aromatic compounds with (chlorinated alkyl)silanes, the alkylation of benzene with (tt>-chloroalkyl)silanes in the presence of aluminum chloride catalyst was generally affected by two factors the spacer length between the Cl and silicon and the electronic nature of substituents on the silicon atom of (w-chloroalkyl)silanes. As the spacer length between the C—Cl and silicon increases from (chloromethyl)silane to (/i-chloroethyl)silane to (/-chloropropyl)silane, the reactivity of the silanes increases. As the number of chloro-groups on the silicon decreases from (chloromethyl)trichlorosilanes to (chloromethyl)methyldichlorosilanes to (chloromethyl)trimethylsilanes, the... 

The transsilylation reaction of (chloromethyl)trichlorosilane (69) with 1 yields initially, under mild conditions, the bis-chelates 33. Upon heating, or when left in solution for several days, 33 is quantitatively converted to the thermodynamically more favorable product 70 (Eq. 28). Representatives of both product-groups 33 and 70 have been isolated and characterized by single crystal X-ray analyses (33c and 70c, Figs. 35 and 36).51... 

Chloromethyl)trichlorosilane is formed in 60% yield by the reaction of tetrachlorosilane and diazomethane in ether at... 

Trichloro(chloromethyl)silane (Chloromethyl)trichlorosilane CH2CI4SI 1668-26-4 183.926 118 1.4660"" 1.4666"" ... 

Fig. 11 Wet thickness (H) of PAAm in water as a function of the PAAm graft density for samples prepared by surface-initiated ATRP on substrates with gradient of initiator density. The initiator was immobilized by the vapor-diffusion method using mixtures of l-trichlorosilyl-2-(fn/p-chloromethyl phenyl)ethan n-octyl trichlorosilane (w/w) 1 1 (squares), 1 2 (circles), and 1 5 (triangles). The inset shows a cartoon illustrating the polymer behavior. Reproduced with permission from [134] (Copyright 2003 American Chemical Society)...

The formation of 4c can be explained by the reaction in which 1 mol of each of the two reactants reacted simultaneously with an equivalent of elemental silicon. Besides 1,3-disilaalkanes 3c and 4c, 2c was obtained in small amounts along with trichlorosilane and tetrachlorosilane. Cadmium was a good promoter for the reaction as observed in the direct reaction of reactant lc above, while zinc was found to be an inhibitor for this particular reaction. Other (chloromethyl)silanes la.b.d were also applied for this reaction.27... 

The methacryloyloxymethyl alkoxysilanes are easily available starting from methyl trichlorosilane, dimethyl dichlorosilane, or trimethyl chlorosilane (1), respectively (Scheme 1). Photochlorination of these precursor silanes almost exclusively leads to the chloromelhyl silanes. Alkoxylation with methanol or ethanol leads to the chloromethyl(methyl)alkoxysilanes (2). Nucleophilic substitution under phase transfer catalysis conditions and distillative isolation finally yields the methacryloyloxymethylsilanes (3), making the production independent of expensive hydrosilation technology. 

Use of the more reactive tetrabromosilane leads to the bis- and tris-(chloro-methyl) compounds without the necessity for a catalyst.383 Diazomethane reacts with trichlorosilane or trichloro(methyl)silane in the presence of copper powder to yield, respectively, dichloro(chloromethyl)silane385 386 and di-chloro(chloromethyl)(methyl)silane,383 but no chloromethyl derivative can be obtained in this way from chlorosilanes carrying three organic groups, such as chloro-(trimethyl), -(triethyl)-, and -(triphenyl)-silane. 

Tetra-n-butoxysilane Tetrakis (2-ethoxyethoxy) silane Tetrakis (2-methoxyethoxy) silane Tetramethoxysilane 1,1,3,3-Tetramethyldisiloxane Tetramethylsilane Tetra-n-propoxysilane Trichlorosilane Triethoxysilane N-[3-(Triethoxysilyl)-propyl] 4,5-dihydroimidazole N-(Triethoxysilylpropyl) urea Triethylchlorosilane Triethylsilane 1-Trimethoxysilyl-2-(chloromethyl) phenylethane ... 

Stannous octoate Stearamide MEA Stearyl methacrylate 3-(N-Styrylmethyl-2-aminoethylamino) propyltrimethoxysilane hydrochloride Sucrose distearate Sulfated neatsfoot oil Sulfated olive oil Synthetic wax Talc Tall oil Tallowamide DEA Tallowamine acetate Tetra-n-butoxysilane Tetrakis (2-ethoxyethoxy) silane Tetrakis (2-methoxyethoxy) silane Tetramethoxysilane 2,2,4,4-TetramethyM, 3-cyclobutanediol 1,1,4,4-Tetramethyldichlorodisilethylene 1,1,3,3-Tetramethyldisiloxane Tetramethylsilane Tetramethylthiuram disulfide Tetra-n-propoxysilane Tributoxyethyl phosphate Tributyl phosphate Trichlorosilane Triethoxysilane N-[3-(Triethoxysilyl)-propyll 4,5-dihydroimidazole N-(Triethoxysilylpropyl) urea Triethylchlorosilane Triethyl phosphate Triethylsilane Trilauryl trithiophosphite Trilinoleic acid 1-Trimethoxysilyl-2-(chloromethyl) phenylethane Trimethoxysilylpropyidiethylene triamine N-Trimethoxysilylpropyl-N,N,N-trimethyl ammonium chloride Trimethylethoxysilane 2,6,8-Trimethylnonyl-4-alcohol Trimethylolpropane tricocoate 2,2,4-Tri methyl-1,3-pentanediol Trimethylsilyl acetamide o-Trimethylsilyl acetate Trimethylsilyl imidazole Trimethylsilyl iodide Trimethylsilyinitrile Trimethylsilyl trifluoromethane sulfonate Vermiculite Vinyidimethylchlorosilane ... 

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