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, alkylarylketones, 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
Anaerobic Hydroxylation of C(sp<sup>3</sup>)–H Bonds Enabled by the Synergistic Nature of Photoexcited Nitroarenes
作者:Joshua M. Paolillo、Alana D. Duke、Emma S. Gogarnoiu、Dan E. Wise、Marvin Parasram
DOI:10.1021/jacs.2c13502
日期:2023.2.8
availability of the nitroarene, the sole mediator of the reaction. Because of the anaerobic conditions of the transformation, a noteworthy expansion in substrate scope can be obtained compared to prior reports. Mechanistic studies support that the photoexcited nitroarenes engage in successive hydrogen atom transfer and radical recombination events with hydrocarbons, leading to N-arylhydroxylamine ether intermediates
[EN] BENZOHETEROCYCLIC COMPOUND FOR TREATING EP2 AND EP4 RECEPTOR-MEDIATED DISEASES<br/>[FR] COMPOSÉ BENZOHÉTÉROCYCLIQUE POUR TRAITER DES MALADIES MÉDIÉES PAR LE RÉCEPTEUR EP2 ET EP4<br/>[ZH] 用于治疗EP2、EP4受体介导的疾病的苯并杂环化合物
申请人:WUHAN HUMANWELL INNOVATIVE DRUG RES AND DEVELOPMENT CENTER LIMITED COMPANY
The present invention is directed to amino and alkyl pyrazolopyrimidine compounds which may be useful as therapeutic agents for the treatment of disorders associated with phosphodiesterase 9 (PDE9). The present invention also relates to the use of such compounds for treating cardiovascular and cerebrovascular diseases, such as hypertension, chronic kidney disease and heart failure, and neurological and psychiatric disorders, such as schizophrenia, psychosis or Huntington's disease, and those associated with striatal hypofunction or basal ganglia dysfunction.