08:30 Jun 16, 2017 |
French to English translations [PRO] Science - Chemistry; Chem Sci/Eng | |||||||
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| Selected response from: dwt2 United Kingdom Local time: 04:24 | ||||||
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Summary of answers provided | ||||
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4 +3 | substituted at |
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3 +1 | substituted (derivative) |
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Discussion entries: 8 | |
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substituted (derivative) Explanation: The full phrase here is "nitrogen-substituted derivatives" See https://www.boundless.com/users/235424/textbooks/virtual-tex... |
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substituted at Explanation: 'Aminobenzene and its derivatives, substituted at the nitrogen, as well as their salts.' More common is 'nitrogen-substituted' or 'N-substituted' derivatives. The N attached to the aryl group is kept in the aryl derivative. The other R groups attached to the N are substituted. The derivatives may be other amines, which are commonly isolated/stored/sold/used in ammonium salt form. -------------------------------------------------- Note added at 2 hrs (2017-06-16 11:26:00 GMT) -------------------------------------------------- At the N position, if you want to go further. The compound can be substituted at other positions. -------------------------------------------------- Note added at 4 hrs (2017-06-16 13:18:10 GMT) -------------------------------------------------- A fun read: http://laws.justice.gc.ca/eng/acts/C-38.8/page-13.html -------------------------------------------------- Note added at 1 day3 hrs (2017-06-17 11:50:46 GMT) Post-grading -------------------------------------------------- In my explanation, 'the R groups attached...' is not very helpful or consistent. The N atom is 'substituted', meaning it acquires one or more 'substituents', meaning one or more H atoms attached to the N in the parent compound is replaced by a more interesting group in the derivative. Thus 'substituted at' simply means 'substituents placed at' and doesn't necessarily involve a substitution reaction. It is merely descriptive and unique to organic chemistry. |
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