583-19-7Relevant articles and documents
From Anilines to Aryl Ethers: A Facile, Efficient, and Versatile Synthetic Method Employing Mild Conditions
Wang, Dong-Yu,Yang, Ze-Kun,Wang, Chao,Zhang, Ao,Uchiyama, Masanobu
supporting information, p. 3641 - 3645 (2018/03/13)
We have developed a simple and direct method for the synthesis of aryl ethers by reacting alcohols/phenols (ROH) with aryl ammonium salts (ArNMe3+), which are readily prepared from anilines (ArNR′2, R′=H or Me). This reaction proceeds smoothly and rapidly (within a few hours) at room temperature in the presence of a commercially available base, such as KOtBu or KHMDS, and has a broad substrate scope with respect to both ROH and ArNR′2. It is scalable and compatible with a wide range of functional groups.
INTERMEDIATES FOR PREPARATION OF AN INHIBITOR OF PHOSPHODIESTERASE TYPE 5
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Page/Page column 11-12, (2010/04/25)
Boronic compounds of formula II and the process for their preparation, wherein Y1 and Y2 are selected from hydroxyl, (C1-C4)alcoxyl and phenoxyl optionally substituted with one or two radicals independently selected from (C1-C4)alkyl and (C1-C4)alcoxyl; or alternatively Y1 and Y2 together with the boron atom can form a cyclic system. Process for the preparation of Sildenafil by reaction of a intermediate of formula II with a intermediate of formula III, wherein X3 is a leaving group and R1 is selected from H and (C1-C4)alkyl.
Solvent-free Williamson synthesis: An efficient, simple, and convenient method for chemoselective etherification of phenols and bisphenols
Massah, Ahmad R.,Mosharafian, Masumeh,Momeni, Ahamad R.,Aliyan, Hamid,Naghash, H. Javaherian,Adibnejad, Mohamad
, p. 1807 - 1815 (2008/02/02)
Etherification of phenols with dimethyl- and diethylsulfates and benzyl chloride was performed efficiently in the presence of a suitable solid base, NaHCO3 or K2CO3, under solvent-free conditions. The reaction proceeded rapidly at low temperature, and the corresponding ethers were obtained with high purity and excellent yield. Selective etherification of electron-poor phenols in the presence of electron-rich ones and also selective mono-etherification of bisphenols are the noteworthy advantages of this method. This method is environmentally friendly. Copyright Taylor & Francis Group, LLC.