英语词汇“substituent”的音标、意思、用法及中文翻译-反思网

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This is not to be confused with the 1,3-diaxial interactions of cyclohexane derivatives (gauche interactions shared between substituents and the ring).
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Phosphorus chains (with organic substituents) have been prepared, although these tend to be quite fragile.
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The product is a pyrrole with substituents at the 3 and 4 positions.
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Alternatively, it has been prepared by nitration of polystyrene followed by oxidation of the alkyl substituent.
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Catechol is a chemical, but a catechol may also be used as the name of a substituent, where it represents a 1,2-dihydroxybenzene group.
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Formaldehyde reacts with water so readily because its substituents are very small- a purely steric effect.
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Variations in the substituents on the quinoline rings affect its luminescence properties.
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Exopolysaccharides generally consist of monosaccharides and some non-carbohydrate substituents (such as acetate, pyruvate, succinate, and phosphate).
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Each phosphorus centre, which is pyramidal, bears three different substituents - anisyl, phenyl, and the ethylene group.
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When drawn as a zig-zag chain, the erythro isomer has two identical substituents on different sides of the plane (anti).
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The electron-donating strength of the carbon-silicon bond is similar to that of an acetamide substituent and equal to roughly two alkyl groups.
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Metalation often occurs at the position ortho to these substituents.
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As shown in the figure below, the phenyl group at the 2-position can carry different substituents.
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The remaining two fractions, resins and asphaltenes, have polar substituents.
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If this substituent is large enough to prevent rotation, optically active pillararene macrocycles can be isolated.
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In reactions of cyclic dienes, the larger ketene substituent is placed in the "endo" position.
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The structure of the carbonyl compound is important, as -substitution and nearby angular substituents sterically disfavor 1,4-addition.
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The value is a measure of the sensitivity of the reaction to the change in substituent, but only measures inductive effects.
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As the anomeric effect predicts, the methoxy substituent shows an increased preference for the axial conformation.
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词汇	substituent
释义	BETA Examples of substituent substituent isn’t in the Cambridge Dictionary yet. You can help! So the glycolate substituent makes the thiol non-volatile and hence non-odorous. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is not to be confused with the 1,3-diaxial interactions of cyclohexane derivatives (gauche interactions shared between substituents and the ring). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Phosphorus chains (with organic substituents) have been prepared, although these tend to be quite fragile. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The product is a pyrrole with substituents at the 3 and 4 positions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Alternatively, it has been prepared by nitration of polystyrene followed by oxidation of the alkyl substituent. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Catechol is a chemical, but a catechol may also be used as the name of a substituent, where it represents a 1,2-dihydroxybenzene group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Formaldehyde reacts with water so readily because its substituents are very small- a purely steric effect. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Variations in the substituents on the quinoline rings affect its luminescence properties. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Exopolysaccharides generally consist of monosaccharides and some non-carbohydrate substituents (such as acetate, pyruvate, succinate, and phosphate). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each phosphorus centre, which is pyramidal, bears three different substituents - anisyl, phenyl, and the ethylene group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When drawn as a zig-zag chain, the erythro isomer has two identical substituents on different sides of the plane (anti). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The electron-donating strength of the carbon-silicon bond is similar to that of an acetamide substituent and equal to roughly two alkyl groups. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Metalation often occurs at the position ortho to these substituents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As shown in the figure below, the phenyl group at the 2-position can carry different substituents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The remaining two fractions, resins and asphaltenes, have polar substituents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If this substituent is large enough to prevent rotation, optically active pillararene macrocycles can be isolated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In reactions of cyclic dienes, the larger ketene substituent is placed in the "endo" position. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The structure of the carbonyl compound is important, as -substitution and nearby angular substituents sterically disfavor 1,4-addition. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The value is a measure of the sensitivity of the reaction to the change in substituent, but only measures inductive effects. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As the anomeric effect predicts, the methoxy substituent shows an increased preference for the axial conformation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.
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Examples of substituent