81422-48-2

Upstream product

• 38484-59-2 (+/-)-trans-2,5-dimethyltetrahydrofuran 
• 17299-07-9 (2R,5R)-2,5-hexanediol 
• 152564-05-1 (2S,5R)-5-acetoxyhexane-2-yl-4-methylbenzenesulfonate 

Downstream Products

• 1536470-53-7 C₂₆H₄₀Li₂N₂O₂ 

Relevant academic research and scientific papers

Cyclization of alkanediols in high-temperature liquid water with high-pressure carbon dioxide

Dehydration of 1,4-butanediol (1,4-BDO) to tetrahydrofuran (THF), 2R,5R-hexanediol (2R,5R-HDO) to 2,5-dimethyltetrahydrofuran (2,5-DMTHF), and 2,5-dimethyl-2,5-hexanediol (2,5-DM-2,5-HDO) to 2,2,5,5- tetramethyltetrahydrofuran (2,2,5,5-TMTHF) proceeded in high-temperature liquid water at 523 K. The formation rates of cyclic ethers were enhanced by high-pressure carbon dioxide (16.2 MPa). The order of dehydration rates in high-temperature water with carbon dioxide was 2,5-DM-2,5-HDO > 2R,5R-HDO > 1,4-BDO (tertiary > secondary > primary alcohols), which was the same order as the stability of corresponding carbocation species.