Visible-Light-Enabled Carboxylation of Benzyl Alcohol Derivatives with CO2 Using a Palladium/Iridium Dual Catalyst was written by Jin, Yushu;Toriumi, Naoyuki;Iwasawa, Nobuharu. And the article was included in ChemSusChem in 2022.Formula: C7H7ClO This article mentions the following:
A highly efficient carboxylation of benzyl alc. derivatives with CO2 using a palladium/iridium dual catalyst under visible-light irradiation was developed. A wide range of benzyl alc. derivatives was employed to provide benzylic carboxylic acids in moderate to high yields. Mechanistic studies indicated that the oxidative addition of benzyl alc. derivatives was possibly the rate-determining-step. It was also found that a switchable site-selective carboxylation between benzylic C-O and aryl C-Cl moieties could be achieved simply by changing the palladium catalyst. In the experiment, the researchers used many compounds, for example, (4-Chlorophenyl)methanol (cas: 873-76-7Formula: C7H7ClO).
(4-Chlorophenyl)methanol (cas: 873-76-7) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R鈥昈鈭?. For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Formula: C7H7ClO
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts