Chemical Analysis of Refinery C<sub>5</sub> Hydrocarbon Fractions

Robey, Richard F.; Wiese, Herbert K.

doi:10.1021/ac60022a017

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…Therefore, we designed the collagenous sequence 1, in which (Gly-Pro-Hyp), was surrounded by cysteine and N-&-seryl-lysine [Lys(Ser)] residues. The Cys residue placed at the amino terminus can react with the bromoacetyl group of an anchor molecule (5, 21,22,25). A Gly residue was introduced as a spacer between the Cys residue and the collagenous peptide.…”

Section: Design and Synthesis Of Collagenous Peptidesmentioning

confidence: 99%

Synthesis and stabilization of amino and carboxy terminal constrained collagenous peptides

Tanaka

Suzuki²,

Tanaka³

1998

The Journal of Peptide Research

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Short collagenous peptides cross‐linked at their amino and carboxy termini with Lys‐Lys‐dimer template(s) were synthesized, and the effect of the cross‐linking on their stabilities was investigated by thermal denaturation experiments. Two chemoselective ligations were used for the construction of the amino and the carboxy cross‐linked peptides. The thermal transition temperature (Tm) and the standard free energies (ΔG°) of the cross‐linked collagenous peptides increased, and the thermal stabilization effect corresponded to an elongation by two units of the Gly‐Pro‐Hyp triad. The van't Hoff enthalpy (ΔH°) and the entropy (ΔS°) values of the cross‐linked peptides increased with chain elongation, although the increments were smaller than those of the linear peptides. When the same chain lengths were compared, the ΔH° was increased and the ΔS° was nearly the same or increased by the cross‐linking. These results suggest that the cross‐linking of the collagenous peptides with the Lys‐Lys‐dimer template(s) for stabilization contributes to the enthalpic effect, rather than the entropic effect.

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Section: Design and Synthesis Of Collagenous Peptidesmentioning

confidence: 99%

Synthesis and stabilization of amino and carboxy terminal constrained collagenous peptides

Tanaka

Suzuki²,

Tanaka³

1998

The Journal of Peptide Research

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Regioselective Dehydrogenative Reverse Prenylation of Indoles with 2‐Methyl‐2‐butene

Wang

Zhao

et al. 2023

Chemistry A European J

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Bulk chemical 2-methyl-2-butene, one of the main C5 distillates of the petrochemical industry, has scarcely been utilized directly in synthesizing high-value-added fine chemicals. Herein, we use 2-methyl-2-butene as the starting material to develop a palladium-catalyzed highly site-and regio-selective C-3 dehydrogenation reverse prenylation of indoles. This synthetic method features mild reaction conditions, a broad substrate scope, atom-and step-economies.

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Determination of the degree of unsaturation of isopentane-isoprene-isoamylene mixtures by bromometric methods

et al. 1957

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Chemical Analysis of Refinery C₅ Hydrocarbon Fractions

Cited by 3 publications

References 24 publications

Synthesis and stabilization of amino and carboxy terminal constrained collagenous peptides

Synthesis and stabilization of amino and carboxy terminal constrained collagenous peptides

Regioselective Dehydrogenative Reverse Prenylation of Indoles with 2‐Methyl‐2‐butene

Determination of the degree of unsaturation of isopentane-isoprene-isoamylene mixtures by bromometric methods

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Chemical Analysis of Refinery C5 Hydrocarbon Fractions

Cited by 3 publications

References 24 publications

Synthesis and stabilization of amino and carboxy terminal constrained collagenous peptides

Synthesis and stabilization of amino and carboxy terminal constrained collagenous peptides

Regioselective Dehydrogenative Reverse Prenylation of Indoles with 2‐Methyl‐2‐butene

Determination of the degree of unsaturation of isopentane-isoprene-isoamylene mixtures by bromometric methods

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Product

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Chemical Analysis of Refinery C₅ Hydrocarbon Fractions