Siddiki, S. M. A. Hakim et al. published their research in RSC Advances in 2014 | 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. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Product Details of 19444-23-6

Versatile and sustainable alcoholysis of amides by a reusable CeO2 catalyst was written by Siddiki, S. M. A. Hakim;Touchy, Abeda Sultana;Tamura, Masazumi;Shimizu, Ken-ichi. And the article was included in RSC Advances in 2014.Product Details of 19444-23-6 This article mentions the following:

CeO2-catalyzed esterification between an equivalent molar ratio of primary amides and alcs. under neutral conditions, which provided the first versatile reusable catalytic system for direct alcoholysis of amides to esters with wider scope and 67 times higher turnover number (TON) than previous catalytic systems was reported. In the experiment, the researchers used many compounds, for example, Benzyl 2-hydroxy-2-methylpropanoate (cas: 19444-23-6Product Details of 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. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Product Details of 19444-23-6

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