期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 169, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.indcrop.2021.113666
关键词
C-lignin; Castor seed coats; Deep eutectic solvents; Hydrogenolysis; Catechols
资金
- Central Universities [2021BLRD01]
- National Natural Science Foundation of China [21776020]
By catalytic hydrogenolysis of castor seed coats with deep eutectic solvents, naturally grown C-lignin can be extracted and depolymerized into monomeric catechols with high efficiency. High selectivity towards 4-propyl catechol was observed in DESs reactions, providing an efficient step for producing valuable catechol compounds.
The recently discovered catechyl lignin (C-lignin) represents an ideal lignin platform for depolymerization because of its exclusive benzodioxane linkages between caffeyl alcohol monolignols. In this report, we described catalytic hydrogenolysis of castor seed coats by using deep eutectic solvents, where naturally grown C-lignin was extracted from endocarp matrix and depolymerized into monomeric catechols. The production efficiency of catechols from present one-pot manner was comparable to that from a two-step approach. High selectivity towards 4-propyl catechol was observed in DESs reactions, which was complementary to previous reports. This study offered a step-efficient protocol for producing a single, valuable catechol compound from bulk sustainable castor seed coats.
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