137569-22-3

Upstream product

• 18496-54-3 phenylbutyric acid chloride 
• 137569-34-7 4-Phenyl-butyric acid 2,6-di-tert-butyl-4-methoxy-phenyl ester 

Downstream Products

• 137569-29-0 t-butyl (2S,5S,1'R)-5-<1'-benzyl-2'-(2,6-di-t-butyl-4-methoxyphenoxycarbonyl)ethyl>-2-(t-butyl)-3-methyl-4-oxo-1-imidazolidinecarboxylate 
• 137569-37-0 (3R,2'S,5'S)-3-<1'-(t-butoxycarbonyl)-2'-(t-butyl)-3'-methyl-4'-oxo-5'-imidazolidinyl>-4-phenylbutanoic acid 
• 126643-06-9 (2S,3R)-2-amino-3-benzylpentanedioic acid 

Relevant academic research and scientific papers

threo-3-Alkyl- and -Arylglutamic Acid Derivatives by Michael Additions of Boc-BMI Li-Enolates to 2,6-Di-t-butyl-4-methoxyphenyl Alkenoates On the Diastereoselectivity of the Coupling of Trigonal Centers Involving Heterocyclic Li-Enolates

The conjugated esters 5, 6, 8, 9 mentioned in the title are prepared from the corresponding aryl acetate 4 and aldehydes by aldol condensation (direct enoylation of the hindered phenol with the corresponding unsaturated acid chlorides gave only poor yield