55538-77-7

Upstream product

• 21165-11-7 methyl (+/-)-α-hydroxy-α-(2-methoxyphenyl)acetate 
• 108-24-7 acetic anhydride 
• 1359987-51-1 2-methoxyphenyl(tributylstannyl)methyl acetate 
• 108447-52-5 C₁₁H₁₂O₅ 
• 18107-18-1 diazomethyl-trimethyl-silane 

Relevant academic research and scientific papers

Α-hydroxyacid salt

PROBLEM TO BE SOLVED: To provide a novel method for manufacturing a salt of α-hydroxy acid as an intermediate for synthesizing α-hydroxy acid derivatives which promotes carboxylation promptly by the COsupplementation reaction even if the substrate having

Synthesis of arylglycine and mandelic acid derivatives through carboxylations of α-amido and α-acetoxy stannanes with carbon dioxide

Incorporation reactions of carbon dioxide (CO2) with N-Boc-α-amido and α-acetoxy stannanes were developed using CsF as a mild tin activator. Monoprotected α-amido stannanes could be used, and the corresponding arylglycine derivatives were obtained in moderate-to-high yields under 1 MPa (10 atm) of CO2 pressure. α-Acetoxy stannanes also underwent carboxylation to afford mandelic acid derivatives in excellent yields under ambient CO2 pressure. Both transformations enabled the synthesis of α-tertiary and α-quaternary carboxylic acid derivatives. In addition, the chirality of (S)-N-tert-butylsulfonyl-α- amido stannanes was transferred with up to 90% inversion of configuration at 100 °C.

Synthesis of Chiral α-Aryl-α-Hydroxyacetic Acids: Substituent Effects in Pig Liver Acetone Powder (PLAP) Induced Enantioselective Hydrolysis

Pig liver acetone powder (PLAP) catalyzed hydrolysis of alkyl α-acetoxy-α-arylacetates produces alkyl (S)-α-aryl-α-hydroxyacetates in 23-80percent enantiomeric purities.Enantioselectivity is dependent on the ester group of O-acetylmandelates.Substitution on the aromatic ring results in inferior selectivities.Only acetate group is hydrolyzed by PLAP while the ester functionality is found to be completely intact.