This invention relates to drilling fluid additives that suppress clay swelling within a subterranean well and to methods for controlling clay swelling during the drilling of a subterranean well. In one embodiment trihydroxy alkyl amine is reacted with an alkyl halide or a water soluble quaternary ...
(a) Reduction of iron(II) to iron(I); (b) activation of alkyl halide by iron(I); (c) reaction of alkyl radical with nitrosoarene and subsequent reduction to give alkyl aryl amine. ArNO2, nitroarene; RX, alkyl halide; TMSCl, chlorotrimethylsilane. 16 h at 90 °C. After an acidic...
The electronic properties of the substituent groups attached (e.g., alkyl groups increase the basicity, aryl groups decrease it, etc.) the degree of solvation of the protonated amine, which mostly depends on the solvent used in the reaction. Simple amine water solubility is largely due to the...
-The Fukuyama amine synthesis provides a powerful way to access secondary amines under mild reaction conditions. -Nitrobenzenesulfonamides (nosyl (Ns) amides) are acidic enough to be alkylated under the Mitsunobu conditions. They can be alkylated by a weak base and an alkyl halide too. ...
95 Camphor is isolated in 69% yield and cyclohexanone in 97% yield. The mechanism of these reactions has been examined in some detail recently.96 The imines from reaction of primary amines with 2,6-di-t-butyl-1,4- benzoquinone react with oxygen and potassium t-butoxide or potassium ...
Secondary amines have two organic substituents (alkyl, aryl or both) bound to the nitrogen together with one hydrogen. View article Review article Chemical and physical systems for sour gas removal: An overview from reaction mechanisms to industrial implications Journal of Natural Gas Science and ...
9. The method of claim 8 wherein the ratio of said alkaline hydroxide to said metal salt is 0.1:1, and said metal salt is present in an equimolar amount as compared to said carbinol and said primary or secondary amine. 10. The method of claim 1 wherein said reaction is conducted in ...
A dispersant-antiwear lubricating oil additive is made by reacting a high molecular weight hydrocarbon-substituted phenol with aldehyde and ammonia or amines having a reactive hydrogen atom to form a Mannich condensation product which is reacted with an alkylene oxide and P.sub.2 S.sub.5 to for...
amine胺 大学有机化学 OrganicChemistry March,2010by翁豐富老師•Time:Tue.08:40-10:25(A班)or.10:35-12:20(B班)•Office:藥物化學研究所，互助大樓10F1002室，分機5603•E-mail:ffwong@mail.cmu.edu.tw•OfficeHours:Wed.P.M.13:00-18:00 1 •美國世界史題目：成吉思汗的繼承人窩闊臺，當初...
16.The method according to claim 12, wherein preparing the segment comprises substantially simultaneously adding the cyclic ester and the cyclic ether into a reaction mixture maintained in reaction conditions. 17.The method according to claim 12, wherein preparing the segment comprises adding the poly...