How is 2-Methyl-2-propanyl [(4S,6R)-6-(chloromethyl)-2,2-dimethyl-1,3-dioxan-4-yl]acetate (CAS: 521973-99-9) typically synthesized?

This compound is typically synthesized via a Wittig reaction between the appropriate aldehyde and the corresponding dialkyl phosphorite, followed by a series of steps including chloromethylation and esterification. The process is selective and yields up to 90% of the desired product. Catalysts such as tetrabutylammonium fluoride are commonly used to improve reaction rates.