Silane, trimethylchloro

Silane, triethoxyvinyl-. See Vinyltriethoxysilane Silane, trihexyl-. See Trihexylsilane Silane, triisopropyl-. See Trilsopropylsilane Silane, trimethoxymethyl-. See Methyltrimethoxysilane Silane trimethoxy (2-methylpropyl). See Isobutyltrimethoxysilane Silane, trimethoxyoctadecyl-. See n-Octadecyltrimethoxysilane Silane, trimethoxy (3-(oxiranylmethoxy) propyl)-. See 3-Glycidoxypropyltrimethoxysilane Silane, trimethoxy-2-propenyl. See Allyltrimethoxysilane Silane, trimethoxypropyl-. See n-Propyltrimethoxysilane Silane, trimethoxyvinyl-. See Vinyltrimethoxysilane Silane, trimethyl-. See Trimethylsilane Silane, trimethylchloro-. See Trimethylchlorosilane Silane, trimethylethoxy-. See Trimethylethoxysilane Silane, trimethyl (octadecyloxy)-. See Stearoxytrimethylsilane... 

Synonyms Chlorotrimethylsilane Chlorotrimethylsilicane Monochlorotrimethylsilicon Silane, trimethylchloro- Silicane, chlorotrimethyl-Silylium, trimethyl-, chloride TMCS Trimethylsilyl chloride Empiricai CsHgCISi Formuia CISi(CH3)3... 

N-Chlorosac arin, reactions 28, 202 suppl. 29 Chlorosilanes s. Trichloro-silanes, Trimethylchloro-silane... 

Silane, oxybis (trimethyl-. See Hexamethyidisiloxane Silane, triethoxyoctyl-. See Octyltriethoxysilane Silane, trimethoxymethyl-. See Methyltrimethoxysilane Silane, trimethylchloro-. See Trimethylchlorosilane Silane, trimethyl (octadecyloxy)-. See Stearoxytrimethylsilane Silica... 

The diolefin 1064 gives rise to the isoxazoline 1065, which cannot eliminate tri-methylsilanol 4 [122]. Cychzation of the co-nitroolefin 1066 with trimethylchloro-silane (TCS) 14/triethylamine at -35 °C then HCl-induced removal of trimethyl-silanol 4 leads, in 85% yield, to the dimer 1067, which is converted in two more steps into racemic pyrenophorin 1068 [112] (Scheme 7.39). Further cyclizations of co-nitroolefins [109] to monomeric or dimeric isoxazolines have been described. Conjugated dienes such as butadiene afford a mixture of the mono or bis adducts [115-117]. 

It should also be noted that the viscometric technique can detect the presence of star-shaped aggregates, having the ionic active centers. The addition of ethylene oxide to hydrocarbon solutions of poly(isoprenyl)lithium leads to a nearly two-fold increase in viscosity144). Conversely, this results in an approximately twenty-fold decrease in solution viscosity, after termination by the addition of trimethylchloro-silane. This change in solution viscosity is reflected in the gelation which occurs when difunctional chains are converted to the ionic alkoxy active centers 140,145,146). Branched structures have also been detected 147> by viscometry for the thiolate-lithium active center of polypropylene sulfide) in tetrahydrofuran. 

Most traditional methods use hydrochloric acid solutions as the acid reagent for the hydrolysis or alcoholysis of fi-lactams. Methanolic solutions of trimethylchloro-silane are able to generate HCI in situ, and the trick has been employed successfully for the methanolysis of fi-lactams in a route to aspartic acid derivatives [60, 61] and 2-oxazolidinones[62], respectively. Recently the use of silica-supported acid reagent has been reported as a convenient alternative. The reagent (Si02-Cl) prepared from admixing silica gel and SOCl2 in dichloromethane and subjected to dryness, is able to run the methanolysis of (1-lactams at room temperature in 20 min [63]. 

Among the more important trimethylsilylation reagents are trimethylchloro-silane (TMCS) hexamethyldisilazane [(Me3Si)2NH, (HMDS)] iV-trimethyl-silylimidazole (TMSI) (1) AT,0-bis(trimethylsilyl)acetamide (BSA) (2) AT,0-bis(trimethylsilyl)trifluoroacetamide (BSTFA) (3) and A-methyl-A-(t-butyldimethylsilyl)trifluoroacetamide (MTBSTFA) (4). 

Nitriles having at least one hydrogen on the functional carbon, react with trimethylchlorosilane under electrochemical conditions to provide a mixture of silazanes and enamines of acylsilanes. These enamines have been suggested to be formed from the isomeric ketene imine form of the nitrile. They were obtained as a mixture of Z (major) and E isomers. Treatment of the silazane-enamine mixture with trimethylchloro-silane/methanol and sodium borohydride followed by neutralization of the salt gives the corresponding RSMA.191... 

TrimethylsUylthio-l-propyne from Lithium Propynethiolate and Trimethylchloro-silane... 

Hexamethyldisilazane is prepared by the ammonolysis of trimethylchloro-silane in hexamethyldisiloxane medium ... 

The decomposition of carboxylic acid esters in the presence of sodium and trimethylchloro-silane... 

Up to now only the reaction of lithiated diethylaminoallene with trimethylchloro-silane, resulting in (exclusively) Me3SiCH2C=C—NEt2, has been reported [104]. The metallation of the easily accessible 2-alkynylamines [6] can be brought about with BuLi /-BuOK in THF. Under suitable conditions free allenic amines can be obtained in a reasonable state of purity if the protonation is carried out with the lithium compounds (obtained from 2-alkynylamines and BuLi in THF, see Ref. [219]), the ratio of allenic and acetylenic amine is less favourable [9]. 

Exemplificative of a third type of oxygen-bonded acetylacetonate derivative is the compound formed from the reaction trimethylchloro-silane and acetylacetone (77). The product from this reaction is 2-tri-methylsiloxy-2-pentene-4-one. It is to be noticed that this silicon compound contains a dangling ligand even though several chelated acetyl-acetonates of silicon are known. Dangling complexation of potential... 

Sterol analysis was also as described previously (Rossell, King and Downes, 1983) except that derivatization was by means of trimethylchloro-silane (Rossell, King and Downes, 1985). 

Friedrich separated six silanes including trimethylchloro-silane and silicon tetrachloride using nitrobenzene on infusorial earth as the stationary phase. The gas stream was passed into 0.02 N potassium chloride and changes in acidity are determined by conductivity measurements,... 

N,0-bis-trimethylsilyl-trifluoroacetamide+1% trimethylchloro-silane.was purchased from Pierce Chemical Co. constituents needed for the preparation of trimethylanilinium hydroxide were purchased from Aldrich Chemical Co. All solvents were of Nanograde quality. 

A mixture of benzoyl chloride, trimethylsilyl isocyanate, and SnCl4 heated under rectification column of 90-145 until removal of the resulting trimethylchloro-silane is complete -> benzoyl isocyanate. Y 68%. F. e. s. V.F. Mironov et al., 45, 477 (1975) C. A. 82, 125006. 

Ethyl n-butyrate added dropwise to Na-sand, 2 moles of trimethylchloro-silane, and refluxing ether mixture of cis- and frans-4,5-bis(trimethylsiloxy)-4-octene (Y 92.3%) stirred and vigorously refluxed 1-2.5 hrs. on a water bath in a HGl-water-ether (or tetrahydrofuran) mixture n-butyroin (Y 96.2%). F. e. s. U. Schrapler and K. Riihlmann, B. 96, 2780 (1963) cyclic acyloins s. B. 97, 1383 (1964). 

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