| 单词 | alkyl group |
| 释义 | > as lemmasalkyl group C2. General attributive, as alkyl group, alkyl radical, etc. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [adjective] > hydrocarbon radicals alkyl1922 1883 Jrnl. Chem. Soc. 44 919 Action of the Alkyl-derivatives of the Halogen-substituted Fatty Acids on Aniline. 1899 E. F. Smith tr. R. Anschütz V. von Richter's Org. Chem. (ed. 3) I. iv. 399 Nitroso-ureas are formed when nitrites act upon nitrates or sulphates of ureas which contain an alkyl group in the amido group. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) iv. 107 By the introduction of alkyl radicals in place of hydrogen into the ammonia molecule, the important class of ammonia bases or amines is formed. 1981 J. W. Buttle et al. Chem. (ed. 4) xviii. 396 The hydrocarbon residue is referred to as the alkyl group..if derived from an aliphatic hydrocarbon. 1999 Oil & Gas Jrnl. (Nexis) 7 June 55 In cat gasoline, approximately 60% of sulfur compounds are thiophenes and their alkyl derivatives. < as lemmas |
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