The synthesis of unsubstituted crown ethers by the reaction of oligoethylene glycols with arenesulfonyl or alkanesulfonyl chlorides.
PL Kuo, N Kawamura, M Miki, M Okahara
Index: Kuo, Ping-Lin; Kawamura, Norio; Miki, Masaki; Okahara, Mitsuo Bulletin of the Chemical Society of Japan, 1980 , vol. 53, # 6 p. 1689 - 1693
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Citation Number: 27
Abstract
A new facile method of synthesizing crown ethers from oligoethylene glycols by treating them with arenesulfonyl or alkanesulfonyl chlorides in the presence of alkali metal hydroxide or alkoxide was described. 15-Crown-5 and 21-crown-7 were synthesized from pentaethylene glycol and heptaethylene glycol respectively in good yields, while 18-crown-6 was obtained from both hexaethylene glycol and triethylene glycol. Although the main ...
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