Bulletin of the Chemical Society of Japan p. 3031 - 3032 (1980)
Update date:2022-08-11
Topics:
Inoue, Yoshihisa
Deguchi, Shokichiro
Hakushi, Tadao
Dehydration of 1,4-, 1,5-, or 1,6- alkanediols over alumina at 220-250 deg C in a distillation apparatus gave the corresponding 5- to 7-membered oxacyclanes in good yield of 51-71percent.Diethylene glycol also gave 1,4-dioxane in 49percent yield, whereas attempted one-step synthesis of crown ethers from polyethylene glycols in a similar manner resulted in the predominant formation of 1,4-dioxane without any trace of crown ether.
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