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Efficient Dehydration of C6-10-?,?-Alkanediols to Alkadienes as Catalyzed by Aliphatic Acids.

ABSTRACT: The aliphatic-acid-mediated dehydration of C6-10-?,?-alkanediols to alkadienes proceeds in a stepwise manner: C6-10-?,?-alkanediols react with aliphatic acids first to generate diesters; subsequent pyrolysis of the latter produces alkadienes. The highest yields of 1,5-hexadiene, 1,7-octadiene, and 1,9-decadiene were up to 70.3, 74.8, and 90.3%, respectively. It turned out that pyrolysis favors the diester with a longer carbon chain more, while acetic acid outperformed the other aliphatic acids in the pyrolysis step that a relatively lower temperature was enough for a high yield of alkadienes.

SUBMITTER: Mao C

PROVIDER: S-EPMC6812129 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Efficient Dehydration of C6-10-α,ω-Alkanediols to Alkadienes as Catalyzed by Aliphatic Acids.

Mao Chongzhi C Zhou Shaodong S Qian Chao C Ruan Jiancheng J Chen Xinzhi X

ACS omega 20191008 17

The aliphatic-acid-mediated dehydration of C6-10-α,ω-alkanediols to alkadienes proceeds in a stepwise manner: C6-10-α,ω-alkanediols react with aliphatic acids first to generate diesters; subsequent pyrolysis of the latter produces alkadienes. The highest yields of 1,5-hexadiene, 1,7-octadiene, and 1,9-decadiene were up to 70.3, 74.8, and 90.3%, respectively. It turned out that pyrolysis favors the diester with a longer carbon chain more, while acetic acid outperformed the o ...[more]

PMID: 31656934

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