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On a benzene ring, the Hammett equation classifies a methoxy substituent at the para position as an electron-donating group, but as an electron-withdrawing group if at the meta position. At the ortho position, steric effects are likely to cause a significant alteration in the Hammett equation prediction which otherwise follows the same trend as ...
Sodium methoxide is prepared by treating methanol with sodium: 2 Na + 2 CH 3 OH → 2 CH 3 ONa + H 2. The reaction is so exothermic that ignition is possible. The resulting solution, which is colorless, is often used as a source of sodium methoxide, but the pure material can be isolated by evaporation followed by heating to remove residual methanol.
Methyltrimethoxysilane is usually prepared from methyltrichlorosilane and methanol: . CH 3 SiCl 3 + 3 CH 3 OH → CH 3 Si(OCH 3) 3 + 3 HCl. Alcoholysis of alkylchlorosilanes typically proceeds via an S N 2 mechanism.
Anisole undergoes electrophilic aromatic substitution reaction at a faster speed than benzene, which in turn reacts more quickly than nitrobenzene.The methoxy group is an ortho/para directing group, which means that electrophilic substitution preferentially occurs at these three sites.
Methoxymethanol forms spontaneously when a water solution of formaldehyde and methanol are mixed. [3] [1] or when formaldehyde is bubbled through methanol.[4]In space methoxymethanol can form when methanol radicals (CH 2 OH or CH 3 O) react.
Lithium methoxide is a compound with formula LiCH 3 O. It is the lithium salt of methanol.Like other alkali metal alkoxides, lithium methoxide adopts a polymeric structure [1] Its solubility in common polar aprotic solvents like THF is low; however, it is soluble in methanol and is available commercially as a 10% solution.
Potassium methoxide is a white to yellowish, hygroscopic, odorless crystalline powder which reacts violently with water forming potassium hydroxide and methanol.