Dataset Information

2-{2-[2-(4-Methoxybenzoyl)ethylamino]-4-nitroanilino}ethyl acetate: complex sheets built from five independent hydrogen bonds.

ABSTRACT: The molecules of the title compound, C(20)H(23)N(3)O(6), are almost completely planar, apart from the H atoms bonded to tetrahedral C atoms. A combination of five hydrogen bonds, one of the N-H...O type and two each of the C-H...O and C-H...pi(arene) types, links the molecules into complex sheets.

SUBMITTER: Insuasty B

PROVIDER: S-EPMC2737427 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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Publications

2-{2-[2-(4-Methoxybenzoyl)ethylamino]-4-nitroanilino}ethyl acetate: complex sheets built from five independent hydrogen bonds.

Insuasty Braulio B Caldfas Yupanqui Y Cobo Justo J Glidewell Christopher C

Acta crystallographica. Section C, Crystal structure communications 20090826 Pt 9

The molecules of the title compound, C(20)H(23)N(3)O(6), are almost completely planar, apart from the H atoms bonded to tetrahedral C atoms. A combination of five hydrogen bonds, one of the N-H...O type and two each of the C-H...O and C-H...pi(arene) types, links the molecules into complex sheets. ...[more]

PMID: 19726867

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Project description:BackgroundEthyl acetate (C4H8O2) and hydrogen (H2) are industrially relevant compounds that preferably are produced via sustainable, non-petrochemical production processes. Both compounds are volatile and can be produced by Escherichia coli before. However, relatively low yields for hydrogen are obtained and a mix of by-products renders the sole production of hydrogen by micro-organisms unfeasible. High yields for ethyl acetate have been achieved, but accumulation of formate remained an undesired but inevitable obstacle. Coupling ethyl acetate production to the conversion of formate into H2 may offer an interesting solution to both drawbacks. Ethyl acetate production requires equimolar amounts of ethanol and acetyl-CoA, which enables a redox neutral fermentation, without the need for production of by-products, other than hydrogen and CO2.ResultsWe engineered Escherichia coli towards improved conversion of formate into H2 and CO2 by inactivating the formate hydrogen lyase repressor (hycA), both uptake hydrogenases (hyaAB, hybBC) and/or overexpressing the hydrogen formate lyase activator (fhlA), in an acetate kinase (ackA) and lactate dehydrogenase (ldhA)-deficient background strain. Initially 10 strains, with increasing number of modifications were evaluated in anaerobic serum bottles with respect to growth. Four reference strains ΔldhAΔackA, ΔldhAΔackA p3-fhlA, ΔldhAΔackAΔhycAΔhyaABΔhybBC and ΔldhAΔackAΔhycAΔhyaABΔhybBC p3-fhlA were further equipped with a plasmid carrying the heterologous ethanol acyltransferase (Eat1) from Wickerhamomyces anomalus and analyzed with respect to their ethyl acetate and hydrogen co-production capacity. Anaerobic co-production of hydrogen and ethyl acetate via Eat1 was achieved in 1.5-L pH-controlled bioreactors. The cultivation was performed at 30 °C in modified M9 medium with glucose as the sole carbon source. Anaerobic conditions and gas stripping were established by supplying N2 gas.ConclusionsWe showed that the engineered strains co-produced ethyl acetate and hydrogen to yields exceeding 70% of the pathway maximum for ethyl acetate and hydrogen, and propose in situ product removal via gas stripping as efficient technique to isolate the products of interest.

Dataset Information

2-{2-[2-(4-Methoxybenzoyl)ethylamino]-4-nitroanilino}ethyl acetate: complex sheets built from five independent hydrogen bonds.

Publications

2-{2-[2-(4-Methoxybenzoyl)ethylamino]-4-nitroanilino}ethyl acetate: complex sheets built from five independent hydrogen bonds.

Similar Datasets

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