25772-81-0Relevant articles and documents
Preparation method of methocarbamol beta isomer
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Paragraph 0029-0032, (2017/08/27)
The invention provides a preparation method of a methocarbamol beta isomer. According to the preparation method, a 2-((Methoxyphenoxy)methyl)ethylene oxide compound 1 is taken as a starting raw material and is sequentially subjected to chlorination, ester
An efficient synthesis of 1-(2-Methoxyphenoxy)-2,3-epoxypropane: Key intermediate of β-adrenoblockers
Madivada, Lokeswara Rao,Anumala, Raghupathi Reddy,Gilla, Goverdhan,Kagga, Mukkanti,Bandichhor, Rakeshwar
, p. 1660 - 1664 (2013/02/25)
An efficient process for the preparation of 1-(2-methoxyphenoxy)-2,3- epoxypropane, a key intermediate for the synthesis of ranolazine is described.
Improvement and simplification of synthesis of 3-aryloxy-1,2-epoxypropanes using solvent-free conditions and microwave irradiations. Relation with medium effects and reaction mechanism
Pchelka, Beata K.,Loupy, Andre,Petit, Alain
, p. 10968 - 10979 (2007/10/03)
Some 3-aryloxy-1,2-epoxypropanes, interesting as potential synthons in β-adrenergic receptor antagonists preparation, were obtained in excellent yields (65-96% within 2-17 min) by microwave activation (monomode system) using solid-liquid solvent-free phase transfer catalysis (PTC). The best results for the O-alkylation of some phenols with epichlorohydrin were obtained using TBAB and NaOH/K2CO3 (1:4 mol/mol) as phase transfer catalyst and more acceptable basic system, respectively. These new procedure is compared with classical methods. Significant specific microwave effect (non-purely thermal) was evidenced in all cases. They were discussed in terms of reaction medium and mechanism, taking into account the variations in polarity of the systems.