Tin triflate-catalyzed conversion of cellulose to valuable (α-hydroxy-) esters
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- 作者：Michiel Dusselier ; michiel.dusselier@biw.kuleuven.be" class="auth_mail" title="E-mail the corresponding author ; Rik De Clercq ; Roy Cornelis ; Bert F. Sels
- 关键词：LA ; lactic acid ; PLA ; polylactic acid ; MLU ; methyl levulinate ; MLA ; methyl lactate ; MVG ; methyl vinyl glycolate ; MMHB ; methyl-4-methoxy-2-hydroxy-butanoate ; MeOH ; methanol ; OTf ; = ; triflate ; = ; trifluoromethanesulfonate
- 刊名：Catalysis Today
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：279
- 期：part_P2
- 页码：339-344
- 全文大小：1521 K
文摘
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SnII(OTf)2 has unique properties to convert cellulose to valuable esters in MeOH.
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Main esters are methyl lactate, methyl vinyl glycolate and methyl levulinate
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SnII(OTf)2 has both a Brønsted and Lewis acidic active component
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The OTf/Sn ratio steers the reaction outcome, either via retro-aldol or dehydration
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Total ester yields (carbon-based mol%) reside in the 60% range (2 h, 200 °C)