The amines also exhibit striking differences: in the aliphatic series these compounds may be directly formed from the alkyl haloids and ammonia, but in the benzene series this reaction is quite impossible unless the haloid atom be weakened by the presence of other substituents, e.g.
As a useful preliminary it is convenient to divide heterocyclic ring systems into two leading groups: (I) systems resulting from simple internal dehydration (or similar condensations) of saturated aliphatic compounds - such compounds are: the internal anhydrides or cyclic ethers of the glycols and t
The aromatic amine resembling the aliphatic amines is benzylamine, C 6 H 5 �CH 2 �NH 2, which may be prepared by reducing benzonitrile in alcoholic solution by means of zinc and acetic acid (0.
aliphatic与发音含义,同义词,反义词,翻译,刑和更多的