17600-72-5Relevant articles and documents
Efficient demethylation of aromatic methyl ethers with HCl in water
Bomon, Jeroen,Bal, Mathias,Achar, Tapas Kumar,Sergeyev, Sergey,Wu, Xian,Wambacq, Ben,Lemière, Filip,Sels, Bert F.,Maes, Bert U. W.
supporting information, p. 1995 - 2009 (2021/03/26)
A green, efficient and cheap demethylation reaction of aromatic methyl ethers with mineral acid (HCl or H2SO4) as a catalyst in high temperature pressurized water provided the corresponding aromatic alcohols (phenols, catechols, pyrogallols) in high yield. 4-Propylguaiacol was chosen as a model, given the various applications of the 4-propylcatechol reaction product. This demethylation reaction could be easily scaled and biorenewable 4-propylguaiacol from wood and clove oil could also be applied as a feedstock. Greenness of the developed methodversusstate-of-the-art demethylation reactions was assessed by performing a quantitative and qualitative Green Metrics analysis. Versatility of the method was shown on a variety of aromatic methyl ethers containing (biorenewable) substrates, yielding up to 99% of the corresponding aromatic alcohols, in most cases just requiring simple extraction as work-up.
NOVEL 3-AMINOALKYL-1,3-DIHYDRO-2H-INDOL-2-ONE DERIVATIVES, PREPARATION THEREOF AND THERAPEUTIC USE THEREOF
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Page/Page column 19, (2011/04/18)
The present invention relates to novel 3-aminoalkyl-1,3-dihydro-2H-indol-2-one derivatives, to their preparation and to their therapeutic application. The compounds of the present invention correspond to the formula (I): in which the variables are as set forth in the specification. These compounds exhibit a strong affinity and a high selectivity for human arginine-vasopressin (AVP) V1a receptors and some compounds additionally exhibit a strong affinity for AVP V1b receptors.
An efficient intermolecular BINAM-copper(I) catalyzed Ullmann-type coupling of aryl iodides/bromides with aliphatic alcohols
Naidu, Ajay B.,Sekar
, p. 3147 - 3151 (2008/09/20)
A wide range of alkyl aryl ethers are synthesized from the corresponding aryl iodides and aliphatic alcohols through Ullmann-type intermolecular coupling reactions in the presence of a catalytic amount of easily available BINAM-CuI complex. Less reactive aryl bromides have also been shown to react with aliphatic alcohols under identical reaction conditions to give good yields of the alkyl aryl ethers without increasing the reaction temperature and time.
