Data-science driven autonomous process optimization.

Data-science driven autonomous process optimization.
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DOI:
10.1038/s42004-021-00550-x
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发表时间:
2021-08-02
影响因子:
5.9
通讯作者:
Hein, Jason E.
Hein, Jason E.
中科院分区:
化学2区
文献类型:
--
作者:
Christensen, Melodie;Yunker, Lars P. E.;Adedeji, Folarin;Hase, Florian;Roch, Loic M.;Gensch, Tobias;dos Passos Gomes, Gabriel;Zepel, Tara;Sigman, Matthew S.;Aspuru-Guzik, Alan;Hein, Jason E.

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Autonomous process optimization involves the human intervention-free exploration of a range process parameters to improve responses such as product yield and selectivity. Utilizing off-the-shelf components, we develop a closed-loop system for carrying out parallel autonomous process optimization experiments in batch. Upon implementation of our system in the optimization of a stereoselective Suzuki-Miyaura coupling, we find that the definition of a set of meaningful, broad, and unbiased process parameters is the most critical aspect of successful optimization. Importantly, we discern that phosphine ligand, a categorical parameter, is vital to determination of the reaction outcome. To date, categorical parameter selection has relied on chemical intuition, potentially introducing bias into the experimental design. In seeking a systematic method for selecting a diverse set of phosphine ligands, we develop a strategy that leverages computed molecular feature clustering. The resulting optimization uncovers conditions to selectively access the desired product isomer in high yield. An automated closed-loop system optimizes a stereoselective Suzuki-Miyaura reaction using a machine learning algorithm that incorporates unbiased and categorical process parameters.
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