66232-35-7Relevant academic research and scientific papers
The separation and synthesis of lipidic 1,2- and 1,3-diols from natural phenolic lipids for the complexation and recovery of boron
Tyman, John H.P.,Mehet, Satinderjit K.
, p. 177 - 199 (2007/10/03)
A study has been made of the semi-synthesis of 1,3-diols (anacardic alcohols) from natural phenolic lipid resources from Anacardium occidentale and Anacardium giganteum which have given C15 and C11 derivatives, respectively. An isomeric 1,3-diol (isoanacardic alcohol) has been obtained from cardanol separated from technical cashew nut-shell liquid. Homologous1,3-diols have been synthesised from a range of synthetic 2-alkyl-, 3-alkyl- and 4-alkylphenols and from 6-alkylsalicylic acids. The natural 1,2-diol, urushiol, from Rhus vernicifera has been purified. All these lipidic compounds have been studied for their complexation and the potential recovery of boron as boric acid.
Selective Reactions between Phenols and Formaldehyde. A Novel Route to Salicylaldehydes
Casiraghi, Giovanni,Casnati, Giuseppe,Puglia, Giuseppe,Sartori, Giovanni,Terenghi, Giuliana
, p. 1862 - 1865 (2007/10/02)
Treatment of phenols (1) with 2 mol equiv. of paraformaldehyde in aprotic and poorly electron-donating solvents in the presence of selected metal halides coupled with suitable bases produces salicylaldehydes (3) in high yields.The route is highly selective for ortho-formylation and also specific towards monoformylation.The crucial role of added bases is emphasized.
Process for preparing 2-hydroxybenzoic aldehydes
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, (2008/06/13)
There is disclosed a catalytic process for preparing, from phenols and formaldehyde 2-hydroxybenzoic aldehydes some of which are new in the art and, more particularly, a high-selectivity process for preparing the aldehydes by direct synthesis from phenols having at least a free ortho position and formaldehyde, in the presence of a catalyst consisting of anhydrous stannous and/or stannic chloride and of an aprotic binder.
