Issue 22, 2016
From the journal:

Green Chemistry

Design of a heterogeneous catalytic process for the continuous and direct synthesis of lactide from lactic acid†

Pravin P. Upare,‡a   Ji Woong Yoon,‡a   Dong Won Hwang,*ab   U-Hwang Lee,ab   Young Kyu Hwang,ab   Do-Young Hong,ab   Jin Chul Kim,c   Jeong Hyeon Lee,c   Sang Kyu Kwak,c   Hyeyoung Shin,d   Hyungjun Kimd  and  Jong-San Chang*ae  

* Corresponding authors

a Green Carbon Catalysis Research Group, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseoung, Daejeon 305-600, Republic of Korea
E-mail: dwhwang@krict.re.kr, jschang@krict.re.kr

b Department of Green Chemistry & Biotechnology, University of Science and Technology (UST), 113 Gwahangno, Yuseong, Daejeon 305-333, Republic of Korea

c School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea

d Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong, Daejeon 305-701, Republic of Korea

e Department of Chemistry, Sungkyunkwan University, Suwon 440-476, Republic of Korea

Abstract

We present a continuous one-step reaction pathway for optically pure lactide under atmospheric conditions based on a novel SnO2–SiO2 nanocomposite catalyst. The new heterogeneous catalytic system gave a record high lactide yield of 94% with almost 100% enantioselectivity and long-term stability (>2500 h) from L-lactic acid.

Graphical abstract: Design of a heterogeneous catalytic process for the continuous and direct synthesis of lactide from lactic acid

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Article information

DOI
https://doi.org/10.1039/C6GC02405J
Article type
Communication
Submitted
29 Aug 2016
Accepted
23 Sep 2016
First published
23 Sep 2016

Green Chem., 2016,18, 5978-5983

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Design of a heterogeneous catalytic process for the continuous and direct synthesis of lactide from lactic acid

P. P. Upare, J. W. Yoon, D. W. Hwang, U. Lee, Y. K. Hwang, D. Hong, J. C. Kim, J. H. Lee, S. K. Kwak, H. Shin, H. Kim and J. Chang, Green Chem., 2016, 18, 5978 DOI: 10.1039/C6GC02405J

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