单词 | triphenylacetic acid |
释义 | > as lemmastriphenylacetic acid A prefix denoting that three phenyl groups, C6H5, are substituted for three hydrogen atoms in the substance designated by the rest of the name; e.g. triphenylacetic acid, C(C6H5)3.CO2H, from acetic acid, CH3.CO2H. So triphenylmethane n. CH(C6H5)3, from methane, CH4. triphenylmethyl- comb. form C(C6H5)—, from methyl, CH3. But this term may also indicate the presence of three phenyl groups and one methyl group, (C6H5)3(CH3); triphenylcarbinol n. C(OH)(C6H5)3, from carbinol, CH3OH. triphenylamine n. formerly triphenylia, N(C6H5)3, from ammonia, NH3. triphenylrosaniline n. C(OH){C6H4.NH(C6H5)}2{C6H3(CH3).NH(C6H5)}, from rosaniline, C(OH){C6H4.NH2}2{C6H3(CH3).NH2}; the hydrochloric acid derivative of this is a blue dye-stuff. So also triˈphenylated adj. containing three phenyl groups. ΘΚΠ the world > matter > chemistry > organic chemistry > organic groups > [adjective] > phenyl groups triphenylated1893 1858 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 7) 601 Triphenylamine. 1862 W. A. Miller Elements Chem. (ed. 2) III. 444 Triphenylia. 1871 Jrnl. Chem. Soc. 24 143 An alcoholic solution of triphenylguanidine absorbs large quantities of cyanogen. 1880 Friswell in Jrnl. Soc. Arts 445 The hydrochloride of triphenylrosaniline. 1893 T. E. Thorpe Dict. Applied Chem. III. 874 Triphenylrosanilines. The triphenylated derivatives of ordinary rosaniline may be subdivided into two classes: crystalline and uncrystallisable blues. 1894 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) IV. 2 Tri-phenyl-benzene C24H18 i.e. C6H3Ph3. < as lemmas |
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