136233-55-1

Upstream product

• 53713-43-2 6-benzyloxy-2-(2-hydroxyethyl)-2,5,7,8-tetramethylchroman 
• 98-59-9 p-toluenesulfonyl chloride 
• 79907-48-5 2-(6-hydroxy-2,5,7,8-tetramethyl-3,4-dihydro-2H-benzo[1,2-b]pyran-2-yl)ethanol 
• 700-13-0 Trimethylhydroquinone 
• 16302-35-5 4-methyl-3,6-dihydro-2H-pyran 

Relevant academic research and scientific papers

2,5,6,7,8-Pentasubstituted (S)- and (R)-[2-chroman-2-yl]ethanols as intermediates for the synthesis of α-tocopherol and its chiral analogs

In the presence of lipase from the yeast Candida cylindracea, partial acetylation of (±)-2-[6-benzyloxy-2,5,7,8-tetramethylchroman-2-yl]ethanol with vinyl acetate gives S-(+)-acetate whose alkaline hydrolysis affords (5)-( - )-alcohol. Repeated enzymatic