17678-19-2Relevant articles and documents
Direct conversion of cellulose to 1-(furan-2-yl)-2-hydroxyethanone in zinc chloride solution under microwave irradiation
Yang, Lei,Li, Gang,Yang, Fang,Zhang, Song-Mei,Fan, Hong-Xian,Lv, Xiao-Na
, p. 2304 - 2307 (2011)
Conversion of cellulose to 1-(furan-2-yl)-2-hydroxyethanone has been demonstrated in concentrated zinc chloride solution under microwave irradiation. Compared with the conventional oil-bath heating mode, microwave irradiation significantly reduced the reaction time and increased the yield of 1-(furan-2-yl)-2-hydroxyethanone. A typical degradation reaction with cellulose produced 1-(furan-2-yl)-2-hydroxyethanone in 12.0% molar yield in ZnCl 2 solution (ZnCl2-H2O ratio = 2.25:1, w/w) with microwave irradiation at 600 W for 5 minutes at 135 °C.
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Harris,Feather
, p. 4813 (1972)
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Identification of 3-hydroxy-6-methyl-2H-pyran-2-one from pyrolysis of phosphoric acid-treated cellulosic materials
Koos, Miroslav,Repas, Milan,Ciha, Miloslav,Kocis, Pavol
, p. 333 - 335 (1980)
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Production of 2-hydroxyacetylfuran from lignocellulosics treated with ionic liquid-water mixtures
Yoshioka, Koichi,Yamada, Tatsuhiko,Ohno, Hiroyuki,Miyafuji, Hisashi
, p. 72405 - 72409 (2015)
Japanese cedar (Cryptomeria japonica) was treated with 12 ionic liquid (IL)-water mixtures at 120 °C for 1 h. Production of 5-hydroxymethylfurfural, furfural and 2-hydroxyacetylfuran (2-HAF) was observed by HPLC and GC-MS. This is the first report to identify 2-HAF from lignocellulosics using ILs. The optimal IL-water mixture was found to be a 90% pyridinium chloride and 10% water w/w solution, although any IL-water mixture that contained pyridinium or imidazolium salts produced all three compounds in varying yields.
A new chemical synthesis of Ascopyrone P from 1,5-anhydro-d-fructose
Andreassen, Mikkel,Lundt, Inge
, p. 1692 - 1696 (2006)
The naturally occurring antioxidant Ascopyrone P (1,5-anhydro-4-deoxy-d-glycero-hex-1-en-3-ulose, 1) was prepared from the rare sugar 1,5-anhydro-d-fructose (AF, 3) in three steps in an overall yield of 36%. Thus, acetylation of 3 afforded the enolone 3,6-di-O-acetyl-1,5-anhydro-4-deoxy-d-glycero-hex-3-en-2-ulopyranose (4), which could be isomerised to 2,6-di-O-acetyl-1,5-anhydro-4-deoxy-d-glycero-hex-1-ene-3-ulose (6). Deacetylation of 6 under mild conditions gave crystalline Ascopyrone P (1).
Preparation and Application of α-Imino Ketones through One-Pot Tandem Reactions Based on Heyns Rearrangement
Li, Ling,Zhang, Shiqi,Deng, Xiongfei,Li, Guangxun,Tang, Zhuo,Zhao, Gang
, p. 6819 - 6824 (2021/09/08)
α-Imino ketone is a useful building block for the preparation of α-amino ketones and α-amino alcohols. However, its preparation has been seldomly seen. Herein, a metal-free and operationally simple strategy has been developed to generate α-imino ketones with high regioselectivity. Meanwhile, the method allowed for the preparation of various N,O-ketals with high regioselectivities and diastereoselectivities through cascade reactions in one pot.
Enantioselective [3 + 2] Cycloaddition Reaction of Ethynylethylene Carbonates with Malononitrile Enabled by Organo/Metal Cooperative Catalysis
Zhang, Yu-Chen,Zhang, Bo-Wen,Geng, Rui-Long,Song, Jin
supporting information, p. 7907 - 7911 (2019/01/04)
The first catalytic asymmetric decarboxylative [3 + 2] cycloaddition reaction of ethynylethylene carbonates with malononitrile has been developed successfully by an organo/copper cooperative system. This strategy led to a series of optically active polysu
