Aryldifluoroboranes: Lewis acidity and catalytic activity in the alkylation of phenols

Mikhail M. Shmakov, Sergey A. Prikhod'ko, Roman Yu Peshkov, Vadim V. Bardin, Nicolay Yu Adonin

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

A series of aryldifluoroboranes was tested as homogeneous catalysts. The Lewis acidity of different ArBF2 was determined by the Gutmann-Beckett method. A simple linear correlation was found between the Lewis acidity of ArBF2 and the rate of phenol alkylation with styrene. Unexpected acceleration of alkylation of 4-XC6H4OH was observed in the series of X = OMe < tert-Bu < H < Br. The possible mechanism of catalysis with ArBF2 including their primary coordination with oxygen atom and the further protonation of styrene with the formed oxonium complex was proposed.

Язык оригиналаанглийский
Номер статьи112202
ЖурналMolecular Catalysis
Том521
DOI
СостояниеОпубликовано - мар. 2022

Предметные области OECD FOS+WOS

  • 2.04 ХИМИЧЕСКИЕ ТЕХНОЛОГИИ
  • 1.04 ХИМИЧЕСКИЕ НАУКИ

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