Takai, Toshihiro et al. published their research in Chemistry Letters in 1991 | CAS: 19444-23-6

Benzyl 2-hydroxy-2-methylpropanoate (cas: 19444-23-6) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.HPLC of Formula: 19444-23-6

Aerobic oxygenation of olefinic compounds to the corresponding α-hydroxy ketones using an osmium tetroxide-nickel(II) complex catalyst system was written by Takai, Toshihiro;Yamada, Tohru;Mukaiyama, Teruaki. And the article was included in Chemistry Letters in 1991.HPLC of Formula: 19444-23-6 This article mentions the following:

In the presence of the catalyst system OsO4-bis(3-methyl-2,4-pentanedionato)nickel(II), various olefinic compounds are directly converted to α-hydroxy ketones in good yields with O2 and an aldehyde. In the experiment, the researchers used many compounds, for example, Benzyl 2-hydroxy-2-methylpropanoate (cas: 19444-23-6HPLC of Formula: 19444-23-6).

Benzyl 2-hydroxy-2-methylpropanoate (cas: 19444-23-6) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.HPLC of Formula: 19444-23-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics