(S*)-2,7,8-Trihydroxychroman-4-one

Cheng, Ming‐Jen; Lo, Wen-Li; Yeh, H. C.; Chen, Chung‐Yi

doi:10.3390/m626

Cited by 12 publications

(5 citation statements)

References 15 publications

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“…3 The three main products that are considered "bio-based products" are: bio-fuels, bio-energy and bio-chemicals, which would be produced in bioreneries. 4,5 In recent decades, the burning of fossil fuels has contributed to increase the level of CO 2 in the atmosphere generating the global warming observed. Because of this and the uncertainty in the petroleum market, the governments of many countries around the world have promoted the production of biofuels.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal hydrolysis of grape seeds to produce bio-oil

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Hydrothermal hydrolysis of grape seeds to produce bio-oil

et al. 2014

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“…Based on corresponding techno-economic analyses, the recent development of the biorefinery area could represent a real opportunity to diminish the utilization of fossil oil. [14] Indeed, a biorefinery integrates biomass conversion processes and equipment to produce fuels, power, heat, and value-added chemicals from biomass. The use of biorefineries for the production of chemicals is key to ensure a sustainable future for the chemical and its derived industries.…”

Section: What Solutions Can Be Brought By Green Chemistry?mentioning

confidence: 99%

Sonochemistry: What Potential for Conversion of Lignocellulosic Biomass into Platform Chemicals?

2014

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This Review focuses on the use of ultrasound to produce chemicals from lignocellulosic biomass. However, the question about the potential of sonochemistry for valorization/conversion of lignocellulosic biomass into added-value chemicals is rather conceptual. Until now, this technology has been mainly used for the production of low-value chemicals such as biodiesel or as simple method for pretreatment or extraction. According to preliminary studies reported in literature, access to added-value chemicals can be easily and sometimes solely obtained by the use of ultrasound. The design of sonochemical parameters offers many opportunities to develop new eco-friendly and efficient processes. The goal of this Review is to understand why the use of ultrasound is focused rather on pretreatment or extraction of lignocellulosic biomass rather than on the production of chemicals and to understand, through the reported examples, which directions need to be followed to favor strategies based on ultrasound-assisted production of chemicals from lignocellulosic biomass. We believe that ultrasound-assisted processes represent an innovative approach and will create a growing interest in academia but also in the industry in the near future. Based on the examples reported in the literature, we critically discuss how sonochemistry could offer new strategies and give rise to new results in lignocellulosic biomass valorization.

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“…There are only two papers describing the constituents of leaves of Cinnamomum reticulatum Hayata [1,2]. In the course of screening for biologically and chemically novel agents from Formosan Lauraceous plants [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], the roots of C. reticulatum were chosen for further phytochemical investigation. The H 2 O extract of its roots was subjected to solvent partitioning and chromatographic separation to afford seven pure substances.…”

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Chemical constituents from the roots of Cinnamomum reticulatum

Chen

2011

Chem Nat Compd

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547.597Cinnamoum reticulatum Hayata (Lauraceae) is an evergreen tree, a tree indigenous to Taiwan [1]. The chemical constituents and biological activity of the roots of this plant have not yet been reported [1,2]. There are only two papers describing the constituents of leaves of Cinnamomum reticulatum Hayata [1,2]. In the course of screening for biologically and chemically novel agents from Formosan Lauraceous plants [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], the roots of C. reticulatum were chosen for further phytochemical investigation. The H 2 O extract of its roots was subjected to solvent partitioning and chromatographic separation to afford seven pure substances. The chemical constituents in the roots of C. reticulatum were separated by column chromatography.Investigation on the MeOH extract of the roots has led to the isolation of nine compounds, one homosesquiterpenoid: (1); six benzenoids: p-hydroxybenzoic acid [22], p-hydroxybenzaldehyde [18], protocatechuic acid [23], ferulic acid [22], trans-methyl p-coumarate [22], and p-dihydrocoumaric acid [22]; and two amides: N-trans-feruloyltyramine [24] and N-cis-feruloyltyramine [24]. These compounds were obtained and characterized by comparison of their physical and spectral data (UV, IR, NMR, and MS) with values in the literature [22][23][24]. In addition to p-hydroxybenzoic acid and protocatechuic acid, all of these compounds were found for the first time from this plant. In this paper, we report the isolation and structural elucidation of this homosesquiterpenoid compound.Compound 1 was isolated as a white, amorphous powder with a molecular formula of C 18 H 16 O 4 , as determined by HR-ESI-MS (obsd. [M + Na] + at m/z 319.0947; calcd [M + Na] + 319.0946). This formula agrees with deductions from the 1 H and 13 C NMR data and corresponds to 11 degrees of unsaturation. The UV spectrum contained absorption bands typical of 5H-dibenzo[a,c]cycloheptene derivatives [6]. IR absorption peaks at 920, 1070, and 3400 cm -1 indicated the presence of methylenedioxy and hydroxy functionalities, respectively. The 1 H NMR resonances of 1 were well dispersed in CDCl 3 and displayed an ABX pattern (H-4 at G 6.70, H-2 at 6.75, and H-1 at 7.31), singlets at G 7.06, 7.12 for H-12 and H-8, respectively, in addition to the methylenedioxy protons at G 6.01, accounting for seven protons. A three proton-singlet at G 3.89 indicated the presence of the methoxy group. The C-6 olefinic proton (G 6.13, t, J = 7.5 Hz) is coupled with the C-5 and C-13 methylene protons, the latter four hydrogens resonating at G 2.75 (dd, J = 13.0, 6.5 Hz, H-5a), 3.03 (dd, J = 13.0, 8.5 Hz, 4.32 (d, J = 13.0 Hz, and 4.50 (d, J = 13.0 Hz,, respectively. The 13 C NMR and DEPT spectra of 1 showed 18 resonances comprising one methyl, three methylene, six methine, and eight quaternary carbons. Structure 1 was also confirmed by 2D NMR experiments. A COSY correlation was observed between H-1 and H-2, and between H-5 and H-6. A triplet of quartets at G 6.13 was assigned to H-6 and ...

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(S*)-2,7,8-Trihydroxychroman-4-one

Abstract: Reticumanone (1), a new chromanone, isolated from the leaves of Cinnamomum reticulatum Hay (Lauraceae), has been characterized as (S*)-2,7,8-trihydroxychroman-4-one, by means of spectroscopic methods.

Cited by 12 publications

References 15 publications

Hydrothermal hydrolysis of grape seeds to produce bio-oil

Hydrothermal hydrolysis of grape seeds to produce bio-oil

Sonochemistry: What Potential for Conversion of Lignocellulosic Biomass into Platform Chemicals?

Chemical constituents from the roots of Cinnamomum reticulatum

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