Tributylamin

Additional commercial markets for 1-butanol include plasticizer esters (eg, dibutyl phthalate), butylated melamine—formaldehyde resins, and mono-, di-, and tributylamines. 

Chlorotnmethylsilane was distilled from tributylamine before use. Both of these reagents were obtained from the Aldrich Chemical Company. 

Chemical Reactivity - Reactivity with Water No reaction Reactivity with Common Materials No reactions Stability During Transport Stable Neutralizing Agems for Acids and Caustics Not pertinent Polymerization Polymerization can occur Inhibitor of Polymerization Terpenes or Tributylamine (1%). 

A polyfluorinated P,y-unsaturated ketone is formed m situ from tributylamine and 3,4-bis(tnfluoromethyl)-3-(pentafluoroethyl)-5,5,6,6,6-pentafluoro-2-hex-anone. The enol form of the unsaturated ketone cyclizes via an intermolecular addition-elimination reaction that involves exclusive attack by oxygen rather than by carbon. This reaction demonstrates the hardness of a F-C= site toward... 

The purified intermediate melted at 210°C. 70.9 g (0.10 mol) of the intermediate was dissolved in 150 ml dimethyl acetamide, and 15 g (0.08 mol) tributylamine was added. The mixture was heated to 50°C, and 56.6 g (0.62 mol) 1,3-dihydroxyisopropylamine (2-amino-1,3-pro-panediol) dissolved in 80 ml dimethylacetamide was added drop by drop. The reaction went to completion within a few hours, and the reaction mixture was evaporated to dryness in a vacuum. The oily residue was added to 350 ml methylene chloride with vigorous agitation, and the resuiting precipitate was filtered off and purified by repeated suspension of warm methyiene chioride. 

Tetrabutylammonium fluoride (TBAF) is usually used in the form of the trihydrate or as a solution in tetrahydrofuran (THF). The pure form is difficult to isolate, owing to decomposition to FFF, tributylamine, and but-l-ene [18, 19] on dehydration. It has been used for a variety of reactions, including as a catalyst for various reactions with silicon compounds [20, 21]. One of its main uses is in the cleavage of silyl ether protecting groups [22]. 

Cyclohexadiene has been prepared by dehydration of cyclohexen-3-ol,3 by pyrolysis at 540° of the diacetate of cyclohexane-1,2-diol,4 by dehydrobromination with quinoline of 3-hromocyclohexene,6 by treating the ethyl ether of cyclohexen-3-ol with potassium bisulfatc,6 7 by heating cyclohexene oxide with phthalic anhydride,8 by treating cyclohexane-1,2-diol with concentrated sulfuric acid,9 by treatment of 1,2-dibromocyclo-hexane with tributylamine,10 with sodium hydroxide in ethylene glycol,10 and with quinoline,6 and by treatment of 3,6-dibromo-cyclohexene with sodium.6... 

Fig. 9.12 An example of HPLC separation of the isoforms of Mycena citricolor luciferin precursors. The sample adsorbed on a PRP-lcolumn was eluted by a linear increase of acetonitrile from 20% to 40% in a pH 7.5 buffer containing 5 mM tributylamine sulfate. Practically all the peaks have the precursor activity.

The system can prevent explosion, fire, and venting with fire under conditions of abuse. These batteries have a unique battery chemistry based on LiAsF6/l,3-di-oxolane/tributylamine electrolyte solutions which provide internal safety mechanism that protect the batteries from short-circuit, overcharge and thermal runaway upon heating to 135 °C. This behavior is due to the fact that the electrolyte solution is stable at low-to-medium temperatures but polymerizes at a temperature over 125 °C... 

A lab procedure reported in Ref 7 yields an almost theoretical compn of (HCN)X. Liq HCN dild with an equal wt of chlf is polymerized by reacting with 5 wt % of tributylamine for eight hrs at 25° in the absence of w and air. 

There are many methods for the preparation of ethane-1-hydroxy-1,1-diphosphonic acid including reacting phosphorus trichloride and acetic acid in the presence of tributylamine [106], phosphorus with acetic acid and oxygen [108], acetic anhydride with phosphorous acid and acetyl chloride [80,84-86,109,110], and acetic anhydride with phosphoric acid and acetic acid [111]. By another method ketene and phosphorous acid can be used [112], as shown in Eq. (68) ... 

CyHi NiOs 65-46-3) see Ancitabine cytidine-5 -phosphoric acid tributylamine salt... 

The dehydration and activation of commercial tetrabutylammonium fluoride di-or trihydrate to obtain anhydrous BU4NF [10, 11] is compHcated because the highly active anhydrous BU4NF decomposes already at T> 14—17°C to give tri-butylamine, tributylamine hydrofluoride, 1-butylfluoride, and 1-butene [12]. Thus... 

However, it was found that the resulting amine hydrochloride was insoluble in this solvent and thus this amine could not be used as an acid acceptor. It has since been found that tributylamine hydrochloride was soluble in our solvent and it is planned to use this amine as an acid acceptor in our future studies. 

In contact with white fuming nitric acid, ignition delays for tributylamine, tripropylamine and triethylamine were less than those of the corresponding dialkylamines, and under good mixing conditions, butylamine did not ignite [1]. Triethylamine ignites on contact with the cone, acid [2],... 

In a similar way to the above, azidopropenoylfuro[3,2- ]pyrroles such as 27 can be thermolyzed in a mixture of diphenyl ether and tributylamine to give the 8-oxo-7,8-dihydropyrrolo[2, 3 4,5]furo[3,2-r]pyridines 28, again via the intermediate isocyanates. The lactam 28 can be chlorinated and reduced using standard methods (POCI3 then Zn/AcOH) to give the pyrrolo[2, 3 4,5]furo[3,2-r]pyridines 29 <1995M753> (Scheme 8). 

---