87-40-1Relevant articles and documents
Selective O-methylation of phenols and benzyl alcohols in simple pyridinium based ionic liquids
Das, Pranab Jyoti,Das, Jupitara
, p. 94 - 98 (2015/06/08)
Synthesis of pyridinium based ionic liquids were reported and applied as catalyst for the selective O-methylation of phenols and benzyl alcohols. The reactions were carried out by using dimethylcarbonate (DMC) as the methylating agent. High selectivity, high yield and recyclability of the ionic liquids are important features of the reactions.
The use of sodium chlorate/hydrochloric acid mixtures as a novel and selective chlorination agent
Moon, Byung Seok,Choi, Han Young,Koh, Hun Yeong,Chi, Dae Yoon
experimental part, p. 472 - 476 (2011/12/04)
Sodium chlorate/hydrochloric acid mixtures were used to chlorinate activated arenes and the α-position of ketones. This chlorination method was used to produce selectively mono-, di-, and trichlorinated compounds by controlling the molarity of sodium chlorate. This reagent proved to be much more efficient and easier to handle than chlorine gas.
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) and microwave-accelerated green chemistry in methylation of phenols, indoles, and benzimidazoles with dimethyl carbonate
Shieh, Wen-Chung,Dell, Steven,Repic, Oljan
, p. 4279 - 4281 (2007/10/03)
(Equation Presented) 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) is a novel and active catalyst in promoting the methylation reaction of phenols, indoles and benzimidazoles with dimethyl carbonate under mild condition. Additional rate enhancement is accomplished by applying microwave irradiation. By incorporating tetrabutylammonium iodide, the same microwave reactions can be further accelerated. By combining these acceleration strategies, very low chemical transformations that take up to several days can be performed efficiently in high yield within minutes.
