单词 | olefin |
释义 | BETA Examples ofolefinDictionary> Examples ofolefin olefinisn’t in the Cambridge Dictionary yet. You can help! Add a definition Note the addition of a restrainingolefin(double bond) bridge in (g). From theCambridge English Corpus The chemoselective ruthenium-catalysedolefinmetathesis reaction was used to 'staple' together the two alkene tethers to provide peptides that maintain helical structure, but with enhanced stability. From theCambridge English Corpus This model seems to be valid despite substitution on theolefin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Furthermore, with the exception noted above, a given dialkyl tartrate will preferentially add to the same face independent of the substitution on theolefin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Olefinis abrasion, stain, sunlight, fire, and chemical resistant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Approaches to this synthesis are diverse, and include central steps such as annululation,olefinmetathesis, radical cyclization, and trapping reactions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Terminal olefins are converted to the corresponding alkyl bromides and alkyl iodides by treating the organoborane intermediates with bromine or iodine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Trisubstituted olefins can rapidly produce dialkyl boranes, but further alkylation of the organoboranes is slowed because of steric hindrance. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These electron-donating groups make theolefinnucleophilic enough to attack electrophilic initiators or growing polymer chains. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Enones, or electron-poor olefins, were discovered to react via a radical-anion pathway, utilizing diisopropylethylamine as a transient source of electrons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It may contain higher concentrations of olefins, oxygen, and nitrogen than conventional crude oil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They are also known as thiiranes,olefinsulfides, thioalkylene oxides, and thiacyclopropanes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The configuration of theolefinis retained in the cycloaddition product. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Moreover, few unwanted by products are formed, such as olefins. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The simplest type of molecules which exhibit allylic strain are olefins. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is generally believed that vinyl iodide can not survive common reduction conditions, which reduces the vinyl iodide to anolefinor unsaturated alkane. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The reverse ofolefininsertion into a metal-hydrogen bond is -hydride elimination. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some of these materials are cotton, wool, nylon, acrylic, polyester, olefins, (such as polypropylene), or spandex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Prior to entering the reaction section, theolefinand isobutane feed are treated in a coalescer to remove water, sulfur and other contaminants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, usingolefinpolymerization catalysts, copolymers can be formed with ethylene or styrene by polymerizing only the norbornene double bond. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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