Direct synthesis of ethers from aldehydes and ketones. One-pot reductive etherification of benzaldehydes, alkyl aryl ketones, and benzophenones
作者:S. S. Mochalov、A. N. Fedotov、E. V. Trofimova、N. S. Zefirov
DOI:10.1134/s1070428016040047
日期:2016.4
Benzyl alcohols formed by the reduction of benzaldehydes, alkyl aryl ketones, and benzophenones with sodium tetrahydridoborate in alcohols undergo in situ etherification with the solvent in the presence of a catalytic amount of HCl. Thus the process may be regarded as one-pot transformation of carbonyl compounds into the corresponding benzyl ethers. The yields of ethers depend on the substituent nature
通过在醇中催化量的四氢硼酸钠将苯甲醛,烷基芳基酮和二苯甲酮还原而形成的苄醇在催化量的HCl的存在下与溶剂进行原位醚化。因此,该方法可以被认为是羰基化合物一锅转化为相应的苄基醚。醚的产率取决于初始羰基化合物的芳族片段中的取代基性质以及用作还原介质的醇。